The mistake part was sarcasm. Why would i be expected to be up to date on the subject (or any other for that matter)? Has being insulted ever led you to develop an interest in what the other person is saying? That’s the most backwards way to go at it.
I never expected anyone to “cater to my ignorance”, that’s a very arrogant statement. “Hot button topic” seems to be synonymous with condescension and a free pass to insult others while looking oh so tolerant and enlightened.
Just give trans people their own washrooms. Clearly, some people won’t be comfortable around them in the male or female washrooms.
Of course it’s not as easy, but it will happen anyway, it’s just a matter of time (and money), in the same way that ramps and special washrooms/stalls were installed for people with disabilities cause the existing ones were inaccessible.