If Biden or any other politician said that he wants to ban handguns, he would be saying it with confidence that he would have support at the polls.
I don't know if that could be realistic but there's no doubt the anti-gun movement is gaining ground. The lack of support for the NRA and it' impending demise indicates some change in America at least.
As a Canadian I'm not taking a position pro or con, I'm only saying what I perceive to be happening.
Overall, I would suggest that little will change for several more years yet.