Okay, but you are aware that "public" means everyone? e.g. the blocked persons friend or frankly second account?

What you want is a list of friends that you share your posts too, but then you wouldn't need social media if you weren't talking to strangers.

> If I block someone, they no longer have access to my timeline.

Yeah and I instantly think "what if they create a new account" and your whole protection instantly fails.

Blocking is barely good enough so famous accounts dont publicly mock you with all of their followers.