There was a post by a programmer who happened to be female; and I commented on it critically. I didn't mention gender at all, I only gave mild pushback on the technical part, sort of "this is why that's not a good idea".

She responded to it very harshly but that's fine, it's the internet, I didn't think much of it at, some people just react like this to criticism.

But then a white knight arrived and put me on blast, accusing me of misogynie an mansplaining, and then she joined in, thanked him for validating her opinion, and that she agreed that was sexism but wasn't sure initially, and then they exchanged a few messages about how terrible it is to be a woman programmer. My explanations got ignored.

Granted I might be wrong for being critical on LinkedIn, a platform that is famously made for circlejerk, but there wasn't even a hint of sexism in any of my comments, I just have a bad habit of arguing on the internet. I make comments like these on the male programmer posts and it's never a big deal.

And the worst is that they proceeded to engage in a self-reinforcing loop about me and other men being sexist.

I looked into other comments of this guy, and it was obvious he had an angle and tried to find a way in to her.

My only thought it is - what the actual fuck. I get admonished for engaging in an honest conversation, while that guy gets complimented for the most blatant sycophancy.