The biggest threat to humanity right now is unchecked human breeding. Lack of religion is a big part of this. Science lets humans live maybe way longer than is optimal for a good balance of productive contribution to humanity. And with the growing population of low quality younger people needed to pay and help the increasing amount of older folks, the future looks bleak.

But science can easily take care of that. Man made virus incoming. Antidote for the selected.

1.  There are at least two things wrong with this.
a) Scientists don't ask you to 'believe' in anything if there is no way of proving it.
b) Scientists show their methodology and their conclusions, allowing anyone to see if they get the same result if the same methods are used, so there is a way to prove it yourself.

2.  You can send a satellite, or review observational data for yourself.  Observation does not require you to be physically on location.  You'd be amazed how much you can verify to be accurate if you avail yourself to the data, methods, technologies, etc that scientists used themselves.

Pretty much to what?

Politicians, more likely to use religion or science, which have no inherent threat by themselves, to further their own agenda.

Pretty much have to agree with this. Most people don't understand science, but they appreciate its contribution to the civilization we live in. Whereas the majority of religious people think they know some sort of divine truth, which is quite dangerous.

Science has a given set of rules to ensure it remains as objective and progressive as possible; religion has specific rules to forbid the latter and is open to so many different interpretations that the former becomes impossible and religion as a tool becomes way too easy to abuse (look at the all the crazy sects and cults that have sprung up across the globe over the millennia and all the mad things done in the name of god, especially in large groups).

Religion doesnt do anything but hold us back. we cant sacrifice scientific and cultural advancement for a god that doesnt even exist

Awful people using any of them for personal gain are the actual threat.

In the hands (minds) of unconscious, non compassionate people, both.

I find those either or questions redundant.

Science is what makes weapons possible. No science, no advanced weaponry, no killing of masses.

Why are people act like wars were fought 99% of  the time because of religion. You need a lesson (or two) in human history.