So there's a lot I could say about this.
First is an example. As much as I, personally, liked (and continue to like) Obama as a person and as much as I agree with most of his policies, at the end of the day he was a pretty ineffective president. Why? Because he could get hardly any legislation passed (Obamacare aka the Affordable Care Act being the principle counterexample). He was a president who ruled by executive order.
The White House is the largest and loudest bully pulpit in the country, by far. You can point to Congress and call them obstructionist but the buck stops with you as president to move your policy agenda and change the national debate. And Obama just wasn't effective at that.
Again, with one exception. It used to be a fairly popular opinion in the US that health coverage was for those with jobs, basically. That still is the position of a significant portion of the population but it's not as popular as it used to be. Obama did change the national debate on this such that the question became how we should provide health coverage and not whether we should.
Go back a decade or more and the Bernie Sanders coverage-for-all policy platform would've relegated him to being a minor player in the primaries, not taken seriously. The fact that he was as prominent a figure as he was is in no small part due to Obama changing the debate on health care (IMHO).
The second thing I'll say is that nothing lasts forever. Demographics change. Opinions change. California voted for Reagan. Twice. It used to be a competitive state. Now it's safely Democratic. Florida used to be safely Republican but (largely due to migration from the Northeast) but now it's a battleground state.
Let's just say that at some point Conservatives get what they've been hoping for: Roe v. Wade overturned in the SCOTUS. It could happen. Largley though the "damage" has been done already. It won't be illegal. It'll just be a state issue. Many states will legallize it the next day. New York for example has already made moves to enshrine the legality of abortions in state law. Now this will suck for particularly poor people in Alabma but in a way Alabamans will get the state government they seem to want.
So let's say that happens. The problem then for Conservatives is they've lost a defining and unifying (for their base) issue. One can argue they're better off politically this way as they'll fracture in the aftermath.
I see the current Conservative bent as a desperate last gasp for what is a majority (in their respective states) that's in decline. A lot of damage can be done before this naturally remedies itself but we're not headed to a dystopian Handmaid's Tale future either.