Democrats knew they were passing crap legislation with their majority, and were looking to "work" with Republicans to share the blame later while making no meaningful concessions. Pubs recognized this, ran away from it, and let the law be 100% pure Democrat. Not really the best example of well-intentioned reaching across the aisle. But I do see your point. Congress used to pass laws, and sometimes both parties passed laws together.
This is in correct. Obama, Pelosi et al. Took single payer off the table before “negotiations” even got started in an attempt to just get republicans to the negotiating table. They were passing crap legislation just to try and get the Pubs to talk to them but Mitch McConnell is a piece of shit in a suit.