NY Jets Players -- Slam Sheldon Richardson ... 'Fire His Ass!!'

Several members of the NY Jets tell TMZ Sports ... they want Sheldon Richardson OFF THE TEAM -- claiming his speeding arrest with a 12-year-old in the car is simply "disgusting."

We spoke with multiple starters from the Jets who tell us they're well aware of the allegations against Richardson -- that cops say he was clocked at 143 mph in his Bentley on July 14th with a 12-year-old kid and a gun in the car.

"He shouldn't be back on the team," one NY player tells us ... "It's disgusting to think he'd do something like that with a kid in the car."

Another starting player tells us, "I'm very disappointed in what he did. I have kids, I can't even imagine doing what he did."

Richardson has already been suspended for the first 4 games of the season for failing an unrelated weed test -- but the Jets say they're now looking into this incident as well to see if they need to take action.

But if he never came back, it clearly wouldn't bother some of the Jets -- one of whom told us, "I never liked him anyway."