Okay, so bear with me, what does "forcibly" entail here? I'm an immigrant too, I also get "forcibly" (as in: I can't refuse) checked whether I'm legal or not based on how I look, which essentially boils down to spending a minute of my time taking my immigrant card (which shows that I'm legal) out of my wallet, showing it to the police officer (or whatever other government official is asking), and then going my way. This is totally not a problem. Doesn't the US have a way for immigrants to easily and unambiguously identify themselves as legal immigrants?