I’ve heard that single payer is the goal, but it never was clear how we would (be forced) to get their.
You may well be right. We’ll find out soon enough.
I'd say the odds are good. A Constitutional ruling would, as the article points out, make the "ACA" null & void overnight. Millions will lose coverage instantly, both because of subsidy loss or loss of government funded plans. If the GOP steps in right away with a plan to SAVE the ACA, they will have lost my vote, and many others, regardless of who they put up. I would also question the viability of the GOP offering up a subsidy plan, as I don't know that it can be implemented quickly enough to save the system. The answer? Well, single payer, of course. FedGov just takes over the healthcare industry. Insurance companies will, mostly, be destroyed overnight. Those that aren't become instant contractors for the FedGov, essentially making them federal employees.
Slogging along into inevitability does not seem to be the American way, but perhaps the concept of that nation once known as “the United States of America” is now only a footnote in history (which is written by the victors, by the way).
Just how would “single payer” work, anyway. If it is merely an expansion of the existing Medicare for seniors, expanded to everybody, how would it be funded? Seems an open-ended liability like that would crush whatever credibility in the “trust and good faith” of the Federal government that still exists.
There simply could not be enough tax revenues raised to make the system viable, let alone self-sustaining.