Do you have some evidence of this claim?  It seems to me that humans are doing just fine.  Life expectancy continues to increase, as does quality of life (at an increasingly fast pace).  So, anecdotal evidence seems to point away from your claim.  

Evolutionarywise it does not really matter if species go extinct,there have been much worse massextinctions before and the lifeforms remaining will evolve into new beings or we could also say they mutate into the next phase.
Minimising the suffering of animals should be the focus,death is just the peace at the end.

Animals can be damn "unknowingly" cruell to other animals,my cats frequentlly bring in a mouse to play with and they keep clawing it around without granting it a fast passing so this week i was in time to get hold of one that was still alive and while i looked at it i noticed it was still a young and well fed mouse and it had such an innocence surrounding it and it was in a state of shock so i did put him to rest in a plantterrarium and put it somewhere warm so it could still have a bit of peace before dieing, 5 mins later it prob died to internal bleedings but it made me thinking about how  that mouse was just a toy for something bigger and its tormenter and murderer is an animal that behaves like the cutest thing on the planet to me.

I am also still feeling emotional for that little critter,it brought tears to my eyes lol .

All the while global warming is increasing, we have nuclear weapons enough to kill most of life, populism is on the rise, foolish fears of falling out if power are making the US do stupid and selfish things, we still kill each other over small matters, Yemen faced one of the worst starvation crisis in a long while, Syria faced one of the worst humanitarian crisis a while back, Israel and Palestine can't stop fighting, the Uyghur are still being mistreated, rohingya are still being massacred and are facing genocide, turkey's leader has gone insane, Brazil elected an insane man that loves torture and kílling, Venezuela is in disarray, India and Pakistan can't stop fighting, India mistreats Kashmiris, Pakistan mistreats Baloch, Brexit is a shit show, a maniac worse than the maniacs before him in the white house, education and healthcare declining in many nations, the middle class can't sustain itself if not given a pay cheque for one month as witnessed by the US partial shutdown, 1 in 200 people in the UK are homeless, a nation like north Korea still exists on this planet, a nation like Saudi Arabia still exists on the earth, the US was running out of bombs according to a report I read a few months back, etc etc etc. We are doing better in some ways and worse in others. But I wouldn't call what we are doing properly handling ourselves as a species

100 is nothing compared to Mother natures Forced extinction. 

Although extinction is a natural phenomenon, it occurs at a natural “background” rate of about one to five species per year. Scientists estimate we're now losing species at 1,000 to 10,000 times the background rate, with literally dozens going extinct every day

https://www.biologicaldiversity.org/programs/biodiversity/elements_of_biodiversity/extinction_crisis/references.html 

A lot of that stuff is simply not true.  Healthcare continues to improve at an extremely rapid pace, as does access to education (the quality of which we can debate forever).  You mention homelessness, but the fact is that far, far fewer people live in extreme poverty today than at any time in history.  Trump is scum, just like Obama, just like Bush, just like Clinton.  Brexit is just the political issue of the day, it doesn't speak to how well humans are doing in general.  War has been the only constant throughout all of human history.  Yeah, it's bad.  But, it ain't new.  The middle class didn't even exist until the last hundred years or so.  Previously, they were all just poor all the time.  We have nukes, yup.  But, nobody is using them.  

By nearly every objective measure, life is getting better for humans.  You can pick out problems if you want. You can dwell on the negative if you want.  But, that doesn't change the fact that were all lucky to be alive now, versus any other time in human history.  

What you say is mostly fact, but the feeling of contentment at least in the 1st World seems to be dropping based off many studies, it could be that humans are really only content in hunter-gather settings for many social reasons that dont really exist now as 99% of our own evolution was in that prior state, that would need to be studied further  

The thing is, humans are animals and for the most part we can get an idea how a certain product might work on humans by firstly spraying it into an animals eyes... it sucks for them but it's great for us, medications tested on animals breed for the purpose of testing save literally millions of lives each year, if we didn't have animal testing then medicine development would just be too slow compared to what is possible with animals which can breed many generations in a matter of weeks.

Still though.... like I said, Humans are an animal too and some day something might come to Earth and look at us the same way we look at livestock and just start to eat us or skin us to make boots, we just happen to be the most intelligent animals on the planet right now, when you think about it, certain tool using monkeys would be very intelligent compared to mice and rats... but we make them look like apes... but yeah if something landed on the planet which was capable of interstellar flight it would probably look at us in the same way we look at the monkey waving a stick over his head.

Which part isn't true? Are you saying the US healthcare is better, or NHS is better right now or Canada's healthcare? The world is in constant swing but we have never truly been able to take care of ourselves, have we? As you said war is a constant and that just means we have never been able to take care of ourselves properly. It can be argued that we are getting ther or we are not but we have certainly not reached it. Education is worse now for sure as in the quality. The quality sucks so much many professors aren't even at that calibre. I can honestly say my grandfather and people who were educated in his time were truly knowledgeable and at a higher level than most of us right now. Sure the no. of people who were educated were lower but that's another topic. And the middle class in the time that it existed is not the best right now. With all these issues and many more, in which way would you call humanity right now as properly handling ourselves? Tell me what your metric is because my initial claim wasn't about where we are vs where we were, it's about properly handling ourselves. We can't solve simple issues with two neighbouring countries, how are we in a position to take care of every species on earth. That was my premise and you yourself are helping my case here. You're not really arguing against me here neither am I against you. We are just talking about 2 different things

Last year I caught 11 moles with my humane trap. It is called humane because the mole is supposed to die instantly. For some of them I felt sorry because I caught them outside of our lawn and the expressions on their faces haunted me for weeks, but the ones that were destroying our lawn were such a pain in the ass, I felt no remorse at all for terminating them.