I am not sure where you got that number from but I will assume you got it from a well sourced study or what have you.

Assuming your number is accurate, that is still a minority of the country. They are large enough to have _some_ influence by virtue of being concentrated in certain regions to elect idiots like MTG and Matt Gaetz but not large enough to represent majority viewpoint of the country. I will grant you that they are a big enough base to cause some problems such as the grid lock we see in congress right now.

Bringing it back to the original topic, these right wing gun toting idiots aren't the root cause (I'm not even sure you can point to one root cause, its a complex problem...) of our very real policing problems but they certainly aren't helping.