Belief is a very strong thing. If you believe in something strong enough, you will commit the most vile of atrocities, especially against people whose beliefs conflict with yours. I've seen people come to blows over which brand of shoes looks better.
Once you understand how belief systems work, you'll see that there is very little difference between religion and politics.
Politics is secular religion, with an otherwise ordinary person as the "Messiah", the party platform as the "Doctrine", and the supporters acting as "Worshippers" and "Evangelists".
Once you know history, you'll see how religion and politics have been intertwined for millennia, and you'll also see how violence and intimidation have been used to spread and enforce specific belief systems.
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.