Surely there is evidence of this white supremacy in the Catholic church.   But if there is, I wonder why author Alex Mikulich didn't cite some of it.

The best barometer of a person's feelings is their actions.   What actions of the Catholic church are demonstrably racist?

And by Catholic church, I don't mean the just the bishops and other clerics, but lay Catholic organizations of any kind.

Maybe Professor Mikulich is reading this post.   If so, it would be helpful if he would point out these Catholics acts of racism, so we can heed his plea, and confront them.