D.L. Hughley just went IN on James Dolan -- saying the Knicks fan he booted from MSG over the weekend should be GRATEFUL he won't have to watch the "sh*tty" Knicks play ever again.
"Right now, if you kicked every Knick fan out, you'd be doing them a f*cking favor," Hughley told TMZ Sports.
But, wait ... there's more!! And, it's pretty hilarious.
Remember, Dolan 86'd a fan from Madison Square Garden after the fan shouted at Dolan to "sell the team" because of their terrible play over the past few decades.