“First, Obamacare was enacted with 51 votes”
Nope.
“On December 23, the Senate voted 60–39 to end debate on the bill: a cloture vote to end the filibuster. The bill then passed, also 60–39, on December 24, 2009, with all Democrats and two independents voting for it, and all Republicans against”
https://en.m.wikipedia.org/wiki/Patient_Protection_and_Affordable_Care_Act
Only an amendment was passed through reconciliation.
I stand corrected. I forgot that they had to rush it through before Scott Brown could come in and replace Senator Kirk and eliminate the 60th ‘RAT vote. They passed it without being able to correct any of its many problems.