I am not at all surprised that they are upset about Natani because her gender dysphoria just stems from her brother's mind being linked to hers, i.e. "two souls one body" and his personality overrode hers to a degree. Which is about how the HRT crowd fetishizes transgenderism: they just want a male mind in a female body, so it's just as horny as they are.
Thankfully, Tom Fischbach seems to be as resilient to drama as his brother and is smart enough to just ignore it. I hope to God that continues because he isn't "furry" enough or interacts with the community to a point where being cancelled would truly hurt him and seeing them all bash at a gate they can't tear down is extremely funny to me.