I've been on Reddit for like 14 years now and politics have never affected me. At all. I stick to subs related to my interests like mechanical keyboards, retro computers, engineering, architecture... and hardly ever I see political stuff. But I don't remember when was the last time I browsed "All" or "Popular", or kept subbed to the large or "default" subs, which, I think, is where you'll find more political stuff. What I mean is that the best thing of Reddit is that you can -still- make of it whatever you want.