Because you think we end capitalism an poof, all other problems are gone?

Sure, can't overcome e.g. racism without overcoming capitalism, but also can't really have a better society without addressing the discrimination in the system.

If some other working class member tells you about the discrimination he receives, and you make the face in the meme, you're helping capitalists by splitting the working class.

The fights are interwoven guys, can't do "this first" or "that first"

You need to address the problems (yes that means also cultural ones) and stand together in solidarity to have a chance of building a better system.

Splitting the working class by making this face when people talk about how they are discriminated just because your not affected is only helping capitalists