This is going to sound fussy but it's a really important point to understand. This is not the case of a bunch of farmers rebelling against a king, or a duke sta

This is going to sound fussy but it's a really important point to understand. This is not the case of a bunch of farmers rebelling against a king, or a duke staging a coup. The people reforming the government is akin to the CEO of a private company firing their mid-level managers. That's the right of the people, and the members of the government serve the people. The reason why the right to bear arms is important to a free state is because both sides of a negotiation must possess power. Kent State was a tragedy, but it's aftermath happened in a court room with lawyers and journalists. Tienanmen square on the other hand saw a government run over it's people with tanks and then pretend it never happened. When one side of a power dynamic has no power, the opposite side can do whatever it wants - install a president for life, promote the president to a position without any checks, directly compromise basic human rights for short term political wins, and so on. A "revolution by force of arms" isn't very likely, but a large well armed group of protestors is a great way to convince a government to show up in court and use words and lawyers instead of tanks.