Probably not, but there's also a limit to how far most people will put themselves in harm's way for people in other countries. America has already shown that it will arrest, deport or jail people on a whim and without trial. How much does the common person want to risk getting disappeared just for the chance to attempt to oppose their governments decisions.
There's also the fact that frankly, America is used to being in "wars" with other countries. Invading other countries is not a problem for the US. It might be a problem if they pick a target that has broad opposition, like Greenland, but even then they might get away with it. With the amount of people who are willing to be violently anti-Palestine, I have no doubt that the White House could propaganda their way into sufficient support for an invasion of Greenland if they had to. Make up some bollocks about China hiding weapons of mass destruction there or something.