The chance of any bill passing is about 30% regardless of what level of public support it has.
The same is not true when you compare the chances to the support the rich have for a bill. When the rich support a bill its far more likely to pass. When the rich oppose a bill, it is far more likely to fail.
So it will be no surprise when this bill unfortunately fails.
"Owning Guns Puts People in Your Home at Greater Risk of Being Killed, New Study Shows"
https://time.com/6183881/gun-ownership-risks-at-home/