Can Americans working in SV explain me how or why the white dudes let that kind of crap happen? Do they walk their heads down when the little fascists talk abou

Can Americans working in SV explain me how or why the white dudes let that kind of crap happen? Do they walk their heads down when the little fascists talk about "diversity"? They say Europe is liberal, but that kind of shot wouldn't get far in any country over here.