Speaking for myself I stopped thinking of religion as being just like kooky nonsense when I got to know some religious people and understood what it was their religion meant to them, and understood that they were using it to do things like figure out what life meant, how they should respond to it, and how they should treat others that I was also doing, even if I wasn't using religion to do it.

Similarly I think dismissing politics as "both sides are kooky" is missing a lot of nuance, "both" being part of it (politics is fractal like any other human endeavor). Speaking for myself again politics started making a lot more sense to me after learning more about political theory and history, as I understood the context better.