We can and do live side by side in many cases.

But if by side by side you mean atheist respecting your religion then I would have to disagree.

No matter how placid a religion may be, wrong is still wrong.

I respect people to much to pretend to respect some of the non sense they believe.

I'm concerned 2% of the population would be more likely to vote for someone who had an extramarital affair. Not influencing is understandable, but more?

Hopefully most of these patterns shift soon as the new generation gets older.

It works fairly well in my house with my christian daughters and my atheism, and that's all I really care about.

As others have pointed out. Atheism is not a system of faith. People who are Atheists do not have faith that there is no deity of any sort.
It is simply disbelief. If it cannot be proven, it is not real and therefore atheists do not believe in it. That is not faith, it is an assessment. It is just like how not all atheists will necessarily believe in the Big Bang theory, as it is just a theory. Atheists believe in what what is solid proof, not something that makes you feel better about exiting this life. It is not faith, it is based on what is definitive. If something is not proven, it is an idea, not solid proof. Atheists ask, how can it be real if it cannot be proven? It is not a question of faith, it is a question of disbelief.

I dare say there is more conflict with religion vs religion, rather than religion vs atheism. 

Most conflict that arises from a religious standpoint, is when a group of people declare that their relgion better than another's religion.
This poses the question: Why cant we have religion (a) and religion (b) live in harmony?

There is always going to be argument with opposing ideals, even within said religion. Tensions have always been within a group regardless of the belief. That is why political partys argue with one another, even if they are within the same party. People argue, they try to make sense of things. Some are arrogant, some merely seek truth and philosophise on whether norms should be challanged, accepted and so forth.

It does not matter whether you are religious or atheist. Arguments will arise despite 'faith' or lack thereof.

This, people like to paint everyone with the same brush, As a Christian  well I've been gone on missions trips(will be going to Nicuragua in the summer) and I know that not everyone will be open to me speaking about my faith; I introduce myself and and then move into the gospel, if they don't seem interested I at least thank them for hearing me out and keep it moving.

I've encountered snarky atheist and on the flip side the most peace loving atheist as well, the zealot christians who damn anyone who isn't with them. Though the western media likes to showing bombing of extremist Muslims, my trip to  Nigeria people have also witnessed bombings by Christians as well. For that I can only say I'm sorry, I don't speak for all Chrisitians but that's certianly not how I or the people have taught propose our faith.

Religions and Atheism will probably never get along(well not to a state of harmony) but  I wold I at least hope that we could come to a state of respect/tolerance when it comes to meeting those of different beliefs, it pains me when I see people who see me and others who pracitce faiths as delusional/stupid/weak-minded(and those also those on the religious side who have the same thoughts about atheistand other religions) no good dialouge will ever come form this and only adds fuel to the fire.

I consider myself a nice guy, likes to hang out, cracks jokes, obviously a gamer, I would hope my religion wouldn't deter a friendship(hasn't yet)

They do. Next question.

In my experience, I think in Europe we live (mostly) in harmony. In Japan too.

Every time I see a debate about religion it seems to come from Americans. No offence, just an observation.

I have to agree with that but there's plenty of other regions/countries where religion is the justification behind war and violence. 

If there was a shortage, ISIS wouldn't be a thing.

This. In Russia we have a lot of religions. Of course, orthodox christians are the bigger part. Then goes muslims and then buddhism, judaism and then smaller kinds of religions (up to Siberian shamans). And we live mostly peacefully. Well, there are always some incidents because of a dumbheads but tey are quite minor. 

Also to the topic. In my opinion, some atheists behave the way like atheism is a religion itself. So i'd not put it against each other.