To be fair, when you said you get enough sealioning from transphobes on other instances, that implies that there are transphobes on Hexbear. If that's not what you mean, then I apologize for misunderstanding. As for ableism, calling people "crazy" is ableist and shouldn't be done.
Regardless, when you spend a good amount of time complaining about Hexbear and other Marxists and Anarchists unprompted, you shouldn't be surprised by pushback. A good number of people on Hexbear are members of orgs and parties, at higher rates than other instances, so the idea that they just read theory and never touch grass is also pretty wrong.
Either way, getting extremely defensive and hostile when you deliberately attack other users is pretty toxic behavior.