In your fantasy world the Republicans united to destroy Obamacare. Versus what it looks like outwardly... that they discovered that universal healthcare has become what the public expects, and now it's really only about how it's funded. If what you mean is that Obamacare is now passed being a single President program and is now Federal healthcare infrastructure to maintain... perhaps you're right.
In your view, Trump has the most to gain from it not passing. Versus what it looks like outwardly, that Trump issued an an ultimatum that most of his own party shrugged off and they won't have lost anything in the process, effectively ending his days as a deal maker in Washington. I don't really see much alternative to this. Did you read the interview in Time? Trump was nearly incoherent.
Perhaps the most stunning bit of fantasy, that Paul Ryan is now taken out of power in the Senate. Versus in the real world where he is, perhaps was, the Speaker of the House having little to do with the Senate. I don't care for Ryan myself, but at this point the Republicans don't have a Speaker problem. If you run two off because they can't unite the party around essentially anything eventually you have to look in the mirror and say perhaps there isn't a party. Hard to see this any other way... this isn't growing pains at this point, these are long established party dynamics Trump was supposed to make irrelevant and move beyond.
And in terms of "undue fuss" ... there's been an overwhelming amount of due fuss. Perhaps when the party can stop giving itself lethal blows, it might be relevant to compare the relative strength of the other party. The way it looks on the outside, the Democrats just have to stand back while the Republicans tear themselves apart.
Seriously, just step outside and look back in. Half of the cabinet lied to Congress during confirmation, lots of resignations over connections to Russians that were hidden or lied about. It ain't going well, and the sooner you notice, the sooner Conservative principles can move forward.