I recall a discussion with a family friend who was an LtCol in intel in the USMC back in the mid ‘90s that dealt with this issue.
According to him, there was a questionnaire put out by the puzzle palace that was meant to poll reactions from the various branches of the military to orders from on highest to do a broad based gun grab on civilians.
The general (in an overwhelming sense) consensus in the Corps, at that time, was that it’d serve only to deplete life endurance companies of some funds since no officer giving such an order would survive the day.
IIrc the quote correctly, there was a division commander appended a statement to the questionnaire with the title “Sometimes, mutiny is the only proper response”.
With the conservative purge in upper military ranks, that may no longer be the case.