it’s okay to block people. block adults, block people you don’t like, block people you disagree with. block people who have no problem openly & publicly harassing you. block people you remember seeing do and say bad things to others when you see it happen so you don’t accidentally follow them later. bullies on the internet are still bullies & it’s ok to block them too. but above all, block people who make you uncomfortable.
you don’t need to have an excuse, absolutely no one has the right to question why you did it. protect yourself. trust your instincts, don’t let others cloud your beliefs.