There are plenty of lies told to sell the Republican bill.
First up: the bill repeals ACA. The fact is the bill amends ACA.
Secondly: the bill repeals the individual mandate. The fact is the mandate remains, the penalty for non-compliance has been set to zero.
Thirdly: the bill repeals the business mandate. The fact is the mandate remains, the penalty for non-compliance has been set to zero.
etc etc etc
A fiscal change that only requires 51 Senate votes. To repeal the mandate requires 60 votes or a nuke. The nuke is not a good idea in the big picture.