Oh boy, here we go.
For one thing, I'm not going to advocate for Hidalgo to get fired or lose his job over this. I think we have enough of that in today's society. That said, he should know better by now, even if you set your account to private, other people can still find those tweets.
I know there are probably a lot of alt-right Fandom Menace schmucks out there who would celebrate Hidalgo getting fired over this. But it would be amusing if his successor was someone who was even more against their delicate sensibilities.
It's sort of like if Kathleen Kennedy stepped down. OK, you're happy she's gone, but then who is going to replace her, and is that person going to do the job you want them to do?
I would just say Hidalgo takes a breath looks over all this and takes it as a teachable moment. I'm not even saying apologize but just you know recognize that not all criticism is TOXIC criticism.