Funny thing to me is that it is really hard to isolate yourself in this way on Twitter. I've spent a lot of time trying to do this but politics always seems to leak through. One thing that has helped is by turning off retweets for as many people as I can.
I resisted setting an account up for years on Reddit, but you're absolutely right - it's the only way to effectively filter things you don't want to see.
You also don't need an account if you want to whitelist with the RES extension instead:
I'd happily give them $5 to prove I'm human but I won't feed Google.
I've turned off all retweets for exactly the reasons discussed but twitter still shows me that so and so liked some snarky thing so and si said about So and Se, Candidate from State about current affair.
If I can prune that last bit, my twitter feed just might be saved.
It’s not just hard to filter things out on Twitter; it’s downright impossible.
thanks Autocorrect
I am surprised this has to be said. It's the same thing with Youtube. Unless you're signed in and have set your own preferences, you will be exposed to the dumpster fire that is mainstream internet content...high schooler humor, conspiracy garbage, superhero movie trailers, etc.