Pretty much. If they thought they were going to win they wouldn't be rocking the boat.
To follow up the thought a bit regarding the Left's implosion; it's worth noting that the other half of the old guard establishment (the one content with permanent underdog status in exchange for a place at the trough) has already been significantly nuked by President Trump hijacking their party.
The Establishment Republicans have fought him every step of the way. The Gang of Eight including Paul Ryan and Mitch McConnell (but notably excluding Devin Nunes who they side-lined with an phony ethics investigation during that time) and the Republican members of the Senate Select Committee on Intelligence were 100% complicit in the phony Russia coup attempt. It also takes but a single senator voting nay to prevent the use of pro forma to remain in session and yet not a single Senate Republican voted so, thus making President Trump the first President in US history to be denied a single recess appointment and to be unable to completely staff the executive branch during his entire term.
They hate him every bit as much as the Leftists for trying to close down their part of the gravy train (notably Endless Wars Inc. and selling out the US middle class for bennies from China by way of the US Chamber of Crony Commerce). They just have to pretend to be on his side because the President has a 90+% approval among the party base.
Those who couldn't grit their teeth ran off to be NeverTrumpers and are, by and large, grifters who made their living by paying lip service to the "conservative" agenda, but utterly failing to deliver when actually given power for "reasons."
The whole question of "what are conservative principles?" is moot. The NeverTrumpers and Establishment killed the term as meaning anything as President Trump started implementing everything they always claimed they'd wanted, but was labeled not a conservative for doing so. It's as meaningless as Liberal is today.
Honestly, I gave up describing myself as "conservative" a long time ago. I'm a subsidiarity-based national populist. I believe that all power should be devolved to the lowest level of organization (nation, state, county, city, borough/township, family/friends, individual) able to handle a given problem and the rights of those at lower levels of organization to be free to solve their own problems and manage their own property must be protected.
Education, for example, sits somewhere in the borough/township and family level so federal and state involvement should be minimal to non-existent. If you think otherwise, then try taking an exam needed to graduate the eighth-grade back in 1900 or so (you can find plenty online) back before our education system was nationalized... and then get back to me.
I believe nation-states are the natural highest level of subsidiarity for protecting the best interests of people and attempts to give power to higher levels has always resulted in the erosion of individual liberties and human misery. I further believe that by having individual nations (and states within those nations, etc.) able to act in their own interests you will have continued experimentation for developing "best practices" as our growing technology changes the way we live our lives.
I believe that the best systems are those that arise naturally from populations at each level rather than those imposed on the population from the top down. When individuals and groups have the freedom to innovate, everyone's lives improve.
I also believe the United States Constitution and Bill of Rights are probably as close as humanity has ever gotten to perfectly codifying and enshrining the above principles I believe in and that those who want to rip them down and replace them with the eternal failures that are all the fruits of Marxism are enemies of the good and enemies of the people.