Lots of people are trying to ban guns. Plenty of campaigns and bills come up all the time.
It’s unrealistic to believe they’ll have a significant amount of support, even in the most liberal of states, but saying that nobody wants to ban guns is false.
Also, saying that there’s never a need for a gun in modern society is false. There are absolutely cases where people have legally defending themselves in situations where few people would disagree with the usage. Those cases are also very rare and the availability of guns in society is a net negative, you are significantly more likely to be harmed by a firearm if you own one.
All that being said, blanket falsehoods do not help these arguments. We do need to study firearm deaths, and amend the constitution to allow for better laws around firearms, but we don’t need to exaggerate to make that point, the facts are enough.