You're imagining things, just like you completely imagined that my argument was about sexual assault. My engagement with you was, from the beginning, purely to point out that the "Bernie Bro" thing was a political narrative pushed by diehard Hillary supporters to diminish the legitimacy of Bernie's support. Yes, it's code for white males, but a specific kind of white male: bros, frat-boy types, guys who, as a caricature, are teeming with toxic masculinity. The sexism and aggressiveness was the point.
It stuck to some degree with Bernie versus Hillary not because it was fair, but because there is an inherent vulnerability on sexism in a modern Dem primary for a male running against the first strong female candidate for president. Before Bernie, it was the Obama Boys, though that didn't stick as well because Obama's candidacy had its own historic nature. It's not happening to Warren because she doesn't have a vulnerability to an attack on sexism grounds, for obvious reasons. And, sure, her supporters are mostly white, but a white person who loves Liz Warren doesn't fit the frat-boy stereotype behind the Bernie Bros narrative either.
That you don't understand why Warren Bros isn't a thing should cause you to question your own reasoning, but you seem to be more comfortable with your false assumptions and the seeming unfairness of something you can't explain.