The guard rail should have been prosecuting Trump before he ran again. Or you can have enforcement come from outside the government by having strong unions that can shut down the economy if the government starts breaking the law and doing bad things. There are guard rails that can be put in place to help but the US has very few that are still left trying to hold back the illegal actions.

Yeah the problem there is you’re gonna get horrific working conditions and if you try to speak up about it they’ll call ICE on you and get another immigrant to replace you.