The whole point of the fediverse is to be able to engage with people from other instances from your home instance. We don't block the other end of the spectrum, grad and hexbear remain available from this instance despite them advocating for various past and present authoritarian regimes and conductors of crimes against humanity.
I wear my badges from them with pride

If you want to block the whole instance you're welcome to, from your own account.
Don't make my decisions for me, I'll talk to whomever i want to, and i should be able to do so from my home instance, as the Fediverse was designed to do