Err, sure, I support freedom of choice and opposing evil, but calling someone evil for deciding to send their son to a boy's only summer camp seems a bit extrem

Err, sure, I support freedom of choice and opposing evil, but calling someone evil for deciding to send their son to a boy's only summer camp seems a bit extreme to me. Civil society also depends on people being tolerant of those they disagree with and practicing kindness and persuasion when they do disagree. Sure, there are things that we set strict laws against and things we oppose morally whether they are legal or not (e.g. murder, mass murder, oppressive surveillance), but which summer camps you decide to sponsor or go to don't seem to me to be part of that list. Maybe I'm just out of touch with society...