I don't think it's the only reason. Control freak gun grabbers simply want to take our freedoms away. They always have. They don't believe we have the right to defend ourselves against enemies, domestic or foreign. They believe only they have the right to say who can carry and/or own guns. That's why I say they are the enemy of all true Americans. I don't see them as American at all. I barely see them as human most the time.
The Marxist rats only get worse, they never get better.
I do agree they don't want us to be able to defend ourselves against our own government gone bad, which it has.