Technically we did just recently in time have a group try to overturn an election by force...I do think those who want access to firearms because they believe the world is so dangerous are a little paranoid, or are not great at realistically assessing risk. I personally am not concerned about having firearms to protect my "liberty" from government, and I'm not sure if that's because I'm an optimist—it's not likely to be an issue—or a pessimist—what could I really do if the government was really motivated to target me.
Not something I ever thought I would see in my day in the good ol USA.