Well, let me just say that I feel you bruh. I'm awkward in public too. Even if it's a place you go often like Work but what I'd suggest is
First: Don't take it personal.

Corny dude made a White Guy funny.

I'd assume what he said wasn't the part that got to you, it was everybody on some peanut gallery
Smiley, Smiley, Laughy, Taffy sh#t
Second: Next time you go to one of these sit up & say a lil something every so often. Even if it's small sh#t like
"Yes, Yes, I agree" if someone states something you down with.
... But you gotta understand that it's like a weird thing about our species were if people are in a group & one doesn't say barely anything
EVER there will be times that person will get picked on. I hate that myself but it is what it is.
PLUS more importantly,
YOu THE ONLY PERSON OF COLOR THERE!! You automatically are like a representative of us all. I know it's an unfair burden but bruh, Just Be your best & you should be good. Don't give them no more ammo for the
"Blacks ain't sh#t, weren't Sh#t & Neva gon be Sh#t" cannon.
I hope ol boy who wanna be a comedian choke on White Privilege just for tryna clown you brotha