[Drew68]

Doesn’t seem like the banner was promoting white supremacy but rather was simply pro-white.

Two things here; was he kicked out for displaying this dubious "white supremacist" slogan or for criminal trespassing?

Second, as a Staff Sergeant, he should know that there are few quicker ways to get kicked out than being in a leadership position and being perceived as a racist. And, yes, there is a double standard. We can bitch about it all night long but it is what it is. Getting arrested at a white nationalist rally and being on the side of the white nationalists is going to put your career on pretty thin ice.

[Nifster]

He was separated for criminal trespass

[kelly4c]

Well, so we just have to accept that double standard? We should not imo.