It's more subtle than that. The superficial nature of the discrimination you're talking about is racial, but in practice I don't think it has a material impact

It's more subtle than that. The superficial nature of the discrimination you're talking about is racial, but in practice I don't think it has a material impact on the racial makeup of companies. Are there really desirable tech jobs where white people are under-represented? What's more insidious is the requirement for people to think or pretend to think in a certain way, meaning pay lip service to the kind of attitude you're talking about. Even if I don't agree with it, I'm much more comfortable being not hired because a minority was prioritized, than being not hired because I don't agree with the orthodoxy around "diversity". Some places make their discrimination explicit, like university jobs that require a diversity statement, others have a diversity interview, etc.