Unfortunately, history goes against this. Consider the way the government shot marchers in the 1932 Bonus Army, or more recently how Parks Police barricaded the WWII memorial to prevent 90 year-old vets from visiting.
Neither of your examples are germane today. From the history I’ve seen the Bonus Army was not much supported by the citizens and looked a lot like the “ Occupy” squatters.
The WW2 Memorial had the barricades removed and no one was shot, which in itself verifies the contention that not many of the gubmit workers will stand with nobama.