It might have to do with age— how old are you?
I feel like for the most part it goes back to hills comment about aggression being perceived as masculine— possibly guys that aren't already into death grips are upset by the thought of a female being obsessed with a band that radiates aggression.
Possibly your female friends fear coming off as aggressive around male counterparts.
It could come down to the fact that they don't like the way it sounds but if you're noticing a gender issue it could be a gender issue.
This being said I meet plenty guys that are SIKED to meet someone else who likes death grips— occasionally they see me, tiny teenage girl— liking death grips as almost a novelty, I think that's how 4chan viewed me too.
Some of my closest friends are the ones that like death grips— I think it's because it's just a thing of likemindedness.
When I first started liking death grips if was also afraid of liking death grips— this makes death grips sound like more of a choking kink then what I'm actually discussing but in a way it could metaphorically be a choking kink.
In 6th grade I was friends with this boy— we would split headphones and each use an ear, he typically played kid cudi — it was alright.
I had death grips on my iPod- I never ever took out my iPod when we shared music because I knew that he would find it odd that I liked them.
I now realize while writing this that so much of what I've done has been me fearing seeming violent.
And I mean I'm not really violent— I'm a pretty peaceful person — but I can also be aggressive, I can love just as I can hate- I was always so afraid of showing people the reds and blacks of who I am over the whites and pinks— I was into twee as a cover around when I'd listen to no wave
7th and 8th grade I had a super awful phase where I'd listen to amateur metal music while sleeping. In 9th grade I replaced that with awful meme rap while sleeping.
Summer of 9th grade I met one of my closest friends at camp — we bonded over rap, namely death grips. The same summer death grips announced that they were over
A consular told us that and I'm pretty sure I cried in a field because death grips has been so much to me— death grips has helped me realize that pretending to not be certain aspects of a person to be the ideal version of your gender isn't worth it. It's taught me that anyone who'd judge me for being a full person rather then just "feminine" is really really really really not worth it.
I think that when it really comes down to it, atleast for me— liking death grips has helped me be a full person.
I'm so sorry for writing so much — I just started and it goes it goes it goes it goes