In the future, will doctors will be treated like cheap labor?

They might be. If the Democrats succeed in imposing an artificially low price on health care and low compensation rates to the skilled workers who provide it, they will reduce the supply of skilled health care professionals. This will create a shortage and degrade the quality of health care in this country. Will immigrant physicians fill the gap? Who knows? Ultimately even they will leave the profession and/or the only people willing to stay in it will be talentless hacks.