Acknowledging someone's contribution is stark different from acknowledging someone's superiority. Maybe your choice of words were wrong.

It's ok to be wrong, you do not have to defend every mistake you make :)

You said "But many people seem to think that White people can never be victims of racism"

I don't recall anyone saying that in this discussion. You seem to have made you own conclusion due to your own prejudices. I think the general concensus here is that racism is bad and should not be accepted as normal.

As I said before, even non whites can be racist and that is wrong when it happens. It is just an escapist, defeatist and inferior mentality to accept that racism of any kind is justified.

You are free to have the escapist, defeatist and inferior mentality by accepting that racism from your superior race is justified.