"is just immature"

That's answering like with like....

" How about we have a nice intelligent debate"
Show any sign of it, and sure.... Or are you just here to suck and moan that someone used some 'language', like a sobbing pussy-man?

"I have no business being up there."
You have lots of business being up there... People who whine and suck and piss and moan that the whole world doesn't stop and sniff everytime they fart are the ones who have no business being in front of a crowd...

If you can entertain in a bar, you can entertain anywhere.