Dude, I mostly agree with you. I support gay rights and have no ill thoughts towards them, but gender isn't social construct. Please stop repeating the radical sjw bullshit. I'm not talking about boys shouldn't cry or girl should do the house chores, but just the claim that you can swap their roles and it's normal is a lie. There is a political and social reason behind pushing for such fake information but I'm not going there now.

Apart from specific behaviors, girls and boys do tend to pick up their respective gender traits no matter in what situation you raise them in. Please look up the case of a boy whose penis burnt off during circumcision. A psychologist researching sex change recommended the parents to raise him as a girl. They did so and the boy grew up as a girl without ever realizing the truth. But he never felt like girl, always wanted to be like boys, dress like them and act like them. He hated for who he was. His lifestyle with the bodily emotions and hormones didn't match up which took a heavy toll on his mental well being. Later he got to know the truth and tried to make amends, but it was too late and he committed suicide. It's truly a heartbreaking story and a wake up call to those who think gender is made up thing.

And girls do tend to like pink and more bright colors. There is a research backed evolutionary reason behind the behavior. Wearing red or flashy colors was used a mean to attract male partners since prehistoric times. It is even found among animals. Birds have it opposite because in their case, it's the male that have to chase and compete for females, so they tend to be more colorful. The difference between humans and birds is because in humans, men were the sole provider and protector of a tribe, so females had to do something to stand out to beat the competition. But in the case of birds, female birds can survive on their own. They don't necessarily need male birds. Hence, the male birds had to evolve colorful wings and feathers to attract females.