Maybe. But we have to remember that Mr. Trump got 12m more votes in 2020 than he did in 2016. Some Americans really liked his presidential style.
BTW "some" = "very significant minority"
And any Republican candidate who loses from now on will have lost because of widespread cheating. It no longer matters what the majority of Americans think.
It is more likely that the Republican Party will set up a one-party state--justified by Democrats rigging elections--than the Republicans actually politically imploding, giving the D's easy wins.