Their Supreme Court had to interpret 'the right to bear arms' recently. The relevant part of the Constitution has this 'right' prefaced by the need to have militias, which seems restrictive as a reason for having guns. But it held that the 'right' was, in principal, universal. It really had to, as a matter of practicality; it could hardly say that the millions of Americans who own guns already had no right to do so, whatever the sense of the argument against.
So America will continue to have inadequate or barely existent gun control and 12,000 homicides (not suicides) by firearm, a year . We have about 40, out of about 600 reported homicides (last figure was 41 from 612, previous year 38).
It's astonishing that so many Americans regard carrying or just having a gun as perfectly natural. The culture is completely different to ours; we think just the opposite.