You have absolutely no need to defend yourself. You can be on either side of the conflict and as long as you arent racist or something stupid you have every right to have those opinions whether I agree or not.
You also have every right to block whoever you want.
My point was only that his accusations on you are irrelevant and really dont matter to me in the least because I am his admin, not yours.
That said, you did nothing wrong even if i was in a place to judge you.