Here is my take on it.
The ability to behave in a socially normal fashion, has always been understood as a way to judge a person.
Behavior, PRIVATE behavior, can be overlooked and tolerated, as long as a person is stable enough to hold it together when around OTHERS, that indicates a certain level of mental health and function.
Social media does blur that line.
If he posted this PUBLICLY, imo, that indicates he is revealing that he is not stable or responsible and I would at the very least want a full investigate into how he got his job and how well he is doing his job. And I don't mean by the libs in his school administration. I mean by someone not likely to be a libtard. And that investigation has to be quick and transparent. I don't want to hear from the school for the next year that an investigation in ongoing and they can't talk about it.
If this LEAKED from a private page? He is still not looking good, and I would want him looked at seriously, but I would be open to hearing that, despite being a complete freak in his personal life, he is.... doing OK as a teacher...
Then that would be... barely acceptable...