Depending on what you mean by “bring out the guns” and who you define as “the altright”, it’s arguably already happened (and has for the left-wing as well).
One of the forum rules is: “Do not post threats or state or imply that any individual or group is deserving of harm.” Talk of joining an insurgency is probably a bit too close to, or over that line, for me to feel comfortable discussing my personal opinions on the matter.