I'm sorry you had a bad apple around you when growing up, but please do not think every trans person is like that. A lot just want to live their lives and wear what they think looks good on them. They may want to appear feminine and have thoughts that just don't seem very masculine, what are they supposed to do in your opinion? They don't want to be laughed at for having to wear a lumberjack shirt while they're freaking out about Taylor Swift (cliche girly example) Nobody is taking your right to food away just because you didn't suffer through famine like a lot of poor people either. You're rightfully mad about male privilege in society, while insisting on your own privilege of being born female.

You have my sympathy, but it sounds like you had a super fucked up childhood and you're now externalizing that trauma onto an unrelated group of people.

Your uncle was a sexual predator, not a trans woman. Trans people are not usually gender fluid so they don't switch back and forth like your uncle and they certainly don't pretend to be a real relative to bully that person's children!?

Honestly it sounds like your uncle had serious issue with your mother, probably stemming from his own childhood abuse. Abusers are often abused. You don't mention them, but I'd bet your mothers parents were not great either.

I am truly sorry for what happened to you growing up. That's really fucked and no one deserves that.

I would caution that you are using this experience to shape the definition of all transgender people in your mind. There's all types of people, good and bad, this is the same with transgender people. This is assuming the person you described is even transgender, which they may not be.

I'd point out that all of the struggles that you face as a biologically born woman, aren't erased because somebody else has joined your gender. There are plenty of cis women who don't experience childbirth, periods, ovarian cysts, fibroids, etc... they're still women. Your struggles in these areas don't gatekeep other people from experiencing womanhood. If a country achieves true gender equality, are the cis female population of that country no longer able to call themselves women because they didn't experience discrimination growing up?

All the things you've mentioned aren't things that define womanhood. They define individual women's struggles. Just because there are members of the gender that have never experienced this, does nothing to undermine these struggles. Feminism exists to help ameliorate the various struggles that affect women disproportionately. That's not being threatened here. If anything it's bringing more attention to it.

A person rejecting the identity of their biology and often their whole social life to be identified as another gender is not done as a mockery. Maybe this did happen in your case. But I assure you that the majority of transgender people want to celebrate the best parts of the gender they are transitioning into and be another person to stand up for them and fight for their equality.

The struggles women are subjected to are brutal. Don't reject an ally who wants to join you.