Why is Reddit so hardcore left wing?

Is it mostly because the demographic is minors? Or what? It’s insane. You literally can’t have even a moderate view without getting downvoted into oblivion and banned. And they argue with zero actual facts or logic and just resort to logical fallacies like ad hominem attacks. Why are so many generalized subreddits hardcore left wing? Like you can’t even go into r/bumperstickers without seeing nonstop TDS posts. It’s legitimately insane.

Edit: a lot of really interesting discussions here, including challenges by differing views. I tried to keep up with most but it’s getting a bit overwhelming. Thank you everyone for the responses and insight though! Also thanks for helping me get a little karma. Now I can post other places again 😂