I think ObsidianBlackbirdMcNight has absolutely nailed it with
Childhood bullying is rampant. It doesn't mean that you weren't socialised as a male
As girls, we are not just bullied, we are sexually harassed. Our bra straps get snapped, boys look up our skirts, the creepy teacher (every school has one) stares down your blouse. We are shamed for our periods and our breast size (big, small, doesn't matter...whatever you've got, they'll make fun of you). If you don't put out, you're frigid. If you do, you're a slag. Boys find the nastiest online porn they can and flash it on their smartphones at you when you pass them to shock you. You get sexually harassed by adult men walking home, or at the bus stop. Most of us can recall being flashed or groped by them at one point or another. If you're really unlucky, you get raped by a male relative or family friend.
Girls are taught to be quiet, polite, courteous. Not to hurt other peoples feelings. To not take up too much space on the pavement or on public transport. To laugh off abusive behaviour to show that you're cool and have a sense of humour. To distrust our own emotional reactions - and those of other women - and dismiss them as overdramatic or erratic (cos, you know, periods make us bitches crazy, amiright?)
When we are insulted, it is because of our either our biology our our sexuality. We are cunts, pussies, slits, bitches, whores, slags, frigid. And if we really piss the boys off, we're lesbians.
And then we grow up, and the real oppression begins!
I'm not saying this to get into the Oppression Olympics. I completely understand that non gender confirming boys have an awful time (my brother is a very effeminate gay man, so I have seen it first hand) and my heart aches for any boy who has to put up with being bullied or made to feel shame for being different. But I cannot accept it when trans activists claim to have always felt like a woman, and they have been socialised as female from birth. Women are not socialised this way because of some inner feeling of gender, but because of our biology, our sex. Being raised as a woman is more than wearing pink and playing with dolls.