There's a website I go on - I won't say which one, but generally the people on there are fairly left wing, mainly london. Mainly male, but a fair few women.
There was a discussion about labour and what it needs to do to gain power. The trans issue came up in passing and only two people were gender critical. A long standing woman poster who said she believes in sex based rights and expects to get banned for saying it (she wasn't, but she was a good girl who knew her place and posted no further); and me who made a few posts and quickly got banned.
Name changed for this, obviously.
That was me. I withdrew from that discussion because IMO it was being stirred by a troll, but as a result of posting I had a really good, respectful offline chat with one of the "other side" so despite the shouting down by a couple of loud voices I'm pretty glad with how it went.