It's called freedom of association. You can't have freedom of association without having the freedom to not associate, and that also includes the freedom to disassociate with those a group had formerly welcomed. So yeah, freedom can be dangerous and it can cause problems, yet it is generally better than the alternative.
Agreed, and if enough people think this owner is an idiot they won't support by associating with em, then this business will have to close or reopen under new management. Sadly, that probably won't happen.
I saw what you did here, but this is a subject area where I let my inner libertarian roam free.