If you believe that human beings cannot be trusted with AR-15s because human beings are fallible, the same applies to government officials. At least be consistent.
Discussion
Don’t think you’re comparing correctly.
I trust a trained marine with a machine gun going overseas (or domestic) to protect my country vs my neighbor who goes nuts if someone parks on the street in front of his house.
I trust an electrician to install a new breaker box, because he was trained to do so and understands the danger/seriousness of the task. I do not trust my dad with the same tools to do the same task because he does not know how to.
I think most on the left and right (polls are 80+%) think it’s fine for Americans to own firearms but to go through a process similar to a driving test to prove they know how to handle a firearm, how to store it safely, and it’s a mental health check in point for the instructor.