honestly its not even that many trans people who make jokes like that. they dont literally mean it but theyre venting and you gotta understand that they dont hate cis people, theyre just angry at them and their power over trans people i guess. i dont quite agree with jokes like "cis people should kill themselves" because thats a suicide joke. but jokes like "trans people> cis people" is fine. tumblr can be a safeplace for these trans people. (hint: can. doesnt stop anti sj and transphobes from harassing them) if they dare say anything like this IRL they would get in soo much trouble. i think once you know transphobia is finally erased then these harmless jokes will go away. but thats not gonna happen anytime soon.
and no one says "die cis scum" that is only said by anti SJ people. i have never ever seen a trans person say that ever. trans people didnt create it.
You cannot have it both ways. You can't excuse all of the horrible things they're saying about straight people as a joke to make light of it all. We are working fully backwards to any sort of equality by excusing this behavior from BOTH sides. "Oh it's just jokes and saying trans > cis is ok!" It doesn't work like that. It would have the same reaction as if you said black people > white people. Not necessary and the only purpose it serves is to cause a greater rift about sexuality.
I was born with female parts, identify as a female and am fully bisexual. It still doesn't make my opinion invalid. I was told that I was "a godless queer that would burn in hell" by my own grandmother for even being openly bi. You live with it, but being angry and bitter towards anyone with a different sexuality than you only hurts your own acceptance.