This is my first downdoot on a blahaj post post, or probably meme in general... I get it's mostly just a joke, but still.
Cis people aren't all fucked in the head or clueless, just like trans people aren't. Allies are able to push for, or at least support trans rights, and unfortunately are a lifeline for trans folk that get shoved out of discussions for "bias."
The "cis bad" memes just add to the lack of understanding, and force and "us vs them" mentality, based only on gender expression. It's not even an optics thing... It just comes off as wanting to be a victim, before Mr Chadson or Ms Becky have been transphobic, or pushed for a bathroom bill, which almost demands a defensive attidude from them both.
Anyways, I have talked with people that are painfully unaware of how gender works/exists. Whether intentional or not, it is not a great time. I would dip out of the interaction ASAP, unless they are trying to understand or learn, which is kind of rare in most cases.