According to a recent [link ==> Gallup poll <== link], there is a minority (36%) of Americans who ...
" ,,, favor a ban on assault rifles, down from 44% four years ago."
This is just one poll, from one source, but Gallup is perhaps the most trusted polling agency in the world. That reputation may be due to their reputation for defining polls without subtle bias.
Some polls are like the notorious Kellermann poll, which 'determined' that:
* Myth #6 "A homeowner is 43 times as likely to be killed or kill a family member as an intruder"... and the "polling technique" used by Kellermann was biased by the pollster, who was determined to 'prove' his original bias by statistically unfounded methods. It has since been 'debunked'.
Apparently, enough people have learned to ignore Kellermann's false statistics to the point where they are looking at the realities of "Self Defense" as a viable option.