Why is Superman vs. Goku still a thing? Have we not already settled that Goku is weeaboo trash?

Because people can't understand that they're characters and the outcome is going to be base upon the creative writing of whoever is the one making the production for the viewers. Screw Attack grew up loving SuperMan thus by their logic he wins. If I were to write it Goku would win.

It's literally as simple as that.