Because it’s part of the mix of traits that that kind of group tends to have. It’s not one of the toxic ones but its part of the ones used to identify them.
It’s a stereotype. It’s designed for mental shortcuts. But then it also casts a much wider net than it ought to and ends up harming innocent people.
It’s a stereotype
Without going too far down the slippery slope: stereotypes exist for a reason. Nissan driver? No insurance, late on car payment, dead-end job. Furry? Gay or bi, nerdy, works in IT or STEM. Boomer? Can’t operate a computer to save their life, is angry and scared about electric cars and renewable energy, their house cost $30k and they don’t realize why kids these days don’t have one.
There’s outliers, sure, but…