This is true. Except that they HAVE to pass something to stop it from being worse
They don't have to pass anything. To vote "for" one of these proposals, of matter how neutered it is, will be anathema to these people.
Think of it like this: Can you see Diane Feinstein voting FOR a CCW bill? Same sort of people here. But it's fascinating seeing them squirm and maneuver for position.
Some, however, will be in the nearly impossible position of voting YES for a gun allowing law or allowing guns by voting NO. At least the no vote would be respectable for the anti-gunner.