Suppose gays are not like everyone else. The guy with the explosives in LA was gay. The guy in Orlando seems to at least tried the lifestyle out. Maybe homosexuals are mentally ill, and homosexual activity is unhealthy for them. Maybe the current tolerance climate predisposes some of them to act out violently. Maybe we should practicing treatment instead of acceptance.
Perhaps instead we should be able to mention UnPC crimethink when we are discussing security issues.
Mental illness often predisposes a person to making careless statements. These can be about any topic. Evaluation can be subjective. Anyone off the street can purport to believe that a fairly damning statement is innocent. Combine with disparately protecting people because of ethnicity, sexual preference or religion, and you will get events like this.
There are good and sound reasons not to build a police state around confining the mentally ill. The current mental health situation is a mess, and much of the reform suggestions are unserious.
There are a bunch of different situations that are badly screwed up. I certainly don’t have sufficient evidence to know that the mental health discussion is relevant here.