Setting boundaries isn't just blocking people online or not wanting to be around them in real life...

Setting boundaries is speaking what you need (asking for what you need....what would make you feel safe and supported and loved) and then giving that person the chance to honor that.

If they can't or won't or don't, you set a new boundary to enforce it or you gently remind them of what you need.

If it seems they're deliberately not respecting your boundary then you can honor you in the extent of walking away or not associating with them, etc.

But "hey get the fuck away from me" isn't setting boundaries.
Blocking and deleting everyone isn't setting boundaries.
Doing this AFTER you've set a boundary and it's repeatedly crossed....THEN that is you honoring you.