The use and change of swear words

For the purpose of this blog, I'm not talking about "fuck" when I saw the "f-word", I'm talking about the other one. While, yes, I can technically say it (I'm bi and nb) I'm just not because of the principle of the matter. Ik this is a pretty redundant topic considering it's Christmas Eve (as of me writing this) but if I don't put this out there I'm not sleeping tonight because I'm heated for no reason. As most people know, cunt has recently been adopted by younger generations (such as me and my sister) as a term of endearment. Tonight at my grandmother's house, my grandpa called my aunt's dog the f-word. I acted shocked, but I've (unfortunately perhaps) come to expect this from my family who somewhat lack social awareness of the changing world around them. I made sure they knew I was joking because people tend to be shocked when someone who isn't gay says it. I forget how it came up, but either me or my sister brought up how cunt is now more socially acceptable in certain situations and when using a certain tone (very circumstantial and the original definition has not lost its original value as it were). My family members who were present flipped out because in their opinion, "saying the 'c-word' is worse than saying faggot"(My straight aunt). My sister and I tried to argue saying, no, words can have different meanings that evolve to mean different things over time, as do many things because as I literally said word for word, "English and many other languages have evolved with the development of society, and as society has changed, so has our vocabulary, even and especially when older generations disapproved." This baffles me because how is it that a straight person can say a slur (maybe one without as much weight as the N-word, but a slur non-the-less) which STILL carries negative and demeaning connotations, but someone can't say a normal (if not a very rude one) in a positive context with correct tone and intent to mean something nice. Mind you, most people who use cunt in this way refrain from using it with older people for this express purpose, but WE'RE the "snowflakes" who get offended when the older generation (even some millennials not much older than the oldest group of Gen Z) say slurs and expect us not to react to it when we've been raised in a completely different social climate??? I think this really irks me because even after the argument was over, my mom and her bf kept bringing it up on the way home and even as we entered the house. First of all, you obviously have a lot more power over us because you're older AND our parents, so why do you have to flaunt it like you just won a debate with a college student who was president of the debate club in high school and majoring in law. Also, it gets exhausting listening to you repeatedly bring up the fact that "I'm right and you're wrong" we'll after the one-sided debate is over; I say one-sided because she's so insecure about us trying to back ourselves up, she would repeatedly talk over us as if we weren't there in the first place. Finally, how can you go about saying the f-word to everyone even though you have TWO gay kids, or is it because you have two gay kids you think you can say it. Just because you're stuck in the 80s doesn't mean I'm stuck there with you;  I'm moving forward whether you like it or not, because I understand that words have multiple meanings and that words, even connotatively negative ones, can have multiple, more positive meanings. Do you know that, Mom? Thanks for listening to me ramble about this, even if you disagree with my stance on this I just like others to understand and read my line of thinking to gain a better understanding. Thanks for coming to my (unofficial) TedTalk :D!!!