Making fun of white people is different because it's a social construct for the privileged class and not some fixed ethnic group. It's a critique of power and not a group of people.

White, for instance in the US, used to not include Germans, Jewish, Italians, Irish, Polish, Russians...

In some places it included middle easterners and Turkish people.

In other places it included Mexicans and Central Americans.

Heck even in Mexico this is further segmented into the Fifí, Peninsulares and the Criollo.

And in some places the white label excludes Spanish altogether

It's more a class and power signifier than anything

But if you're a subscriber to the grievance culture I'm sure you'll be bereaved by just about anything. So yes the liberal woke ai is oppressing you. Whatever.