nobody is telling you to turn it into white guilt.

there's a question of race relations. everybody knows where the system stands (like you know, how trayvon martin was a thug but a white man causing a massacre was shy and intelligent). we don't need white people's opinions in that.
what is needed is for poc to talk about it because it affects them in a way that it doesn't affect you. when poc talk about the police, they're talking am experience a white person will never have. when poc talk about the system, it's not something that you need to participate in. you can listen and that's good! that's all you need to do.

but really, please specify what kind of questions, though? like were there specific conversations lately that you wanted to take part in?