Earlier quoted context omitted.
At this point, I think it has less to do with a belief in a complete gun ban, which seems an absurd thing to even contemplate. It's more that absolutely nothing is done at all. Not even Sandy Hook produced any change whatsoever. A prominent argument was that the entire thing was a fake for the purpose of banning guns, tacitly admitting that reality did merit some kind of change. So at this point it's more of an indic…
The supreme court, stacked or not, has no bearing over gun ownership, nor does congress. "Congress shall make no law […] the right to bear arms shall not be infringed." supercedes both of them.
So it's not so clean cut as you'd think.