"..your dad and brother are men too"

Yes. Which is why the phrase isn't "dadsaretrash".

Men have been compartmentalising women forever. Where they behave differently with women in their lives.

The same men say the sexist of things about other women.
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How many times have you been in a situation where you made a sexist remark and the other guy corrected you by saying "dude she is my sister/GF etc"???

The correction wasn't because she is a woman but because she is "his" "sister".

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And there are huge chances that our kids will become the same..

Unless. We fix it. By calling every man out. Every negative behavior.
Even if it is from our dads and brothers.

Also. I'm tired of this for now. This keeps coming up every now and then.
Going to ignore unless someone bullies the people I admire.