My girlfriend dived into the cesspool of haters and came out with pretty lame arguments. The one tribe is matriarchal and you play as a girl. So obviously the developer wasn't just curious to explore a different type of societal norm. They are spearheading a SJW agenda.

People think Aloy is ugly. People think the game is ruined by the optional crafting aspect (you can buy supplies as easy as making them, though you may need to do a little hunting to make some upgrades). And finally thanks to a couple outlier videos and cases, people think the game is a buggy mess. Which It's not. At all.