It won't be "death squads." That is reminiscent of Cossacks on horseback riding through the villages with swords.
It will be far less dramatic. And far harder to address. It will be unaccountable bureaucrats sitting in some D.C. office building who decide what care will be reimbursed and for whom, when there is insufficient funding to satisfy demand. (And believe me, there will be far more demand than will be able to be paid for.) If doctors won't provide the care when they are not paid, and if people die as a result, well -- call it whatever you like.