I don't think you can construct "It's okay to be white" as something wrong, because it's just inherently correct. It worries me, that you even try to find something wrong the the slogan.
It depends on the context of the comment.
This phasing in particular was literally created by 4chan people, for the purpose of demonstrating some sort of anti SJW agenda.
> This means people who know both terms are at constant risk of arguments of the form "You're weak-manning me!" "No, you're motte-and-baileying me!".