Congressional Republicans are out manoeuvring the Democrats by first repealing the funding for Obamacare. If they tied a successor health insurance scheme to the repeal of Obamacare, as suggested by their opponents, the Senate Democrats could filibuster this to death.
The Senate Republicans can use a reconciliation device to sidestep a filibuster of the defunding of Obamacare and pass the repeal with a simple majority vote. An attempt to repeal the remaining regulatory structure of Obama care would be subject to a filibuster. A filibuster can be overturned only with 60 votes.
By adopting a sequential approach to the repeal of Obamacare, the Senate Democrats are cornered. They can hardly filibuster attempts to replace a defunded Obamacare with more federal assistance to those on low incomes and with pre-existing conditions.
Single payer health insurance systems may have their advantages but one of which is not ready access to an MRI scan in the UK, Denmark or Canada.
Source: OECD Health Statistics.
Remember that those aged over 65 in the USA are covered by Medicare; the poor and welfare beneficiaries are covered by Medicaid; and children of the working poor are covered by CHIPS.
I am told that dogs to get an MRI scan in Canada far quicker than humans. This is because dog owners can pay for the MRI scan. Private health insurance is unlawful in 9 of the 10 Canadian provinces.
There is considerable medical tourism from Canada to the USA, including by politicians who passionately support the single-payer system.