Why don’t you just block the entire politics community? I use Sync, is that a Sync-only thing?

It does take some effort to learn, but it is super customizable and it’s been working great for me so far.

I use Obsidian for note taking, and I downloaded an extension for the ability to turn any note into a task.

Might not be exactly what you’re looking for, but it’s FREE and locally hosted on your PC.