By checking for fealty to the false “stolen” narrative at the outset, Trump’s allies aren’t simply weeding out people who disagree, they’re weeding out people who won’t acquiesce to the Trumpian approach to reality. They’re not just getting rid of people who won’t go along on this one subject; they’re getting rid of people who won’t go along in general.
Dumb and desperate enough to believe the lies, meek enough to go with the flow, or corrupt enough to perpetuate the lies in hopes of wealth and power - 2024’s Republican Party. The conservatives who don’t fit one of those three templates either left long ago or are in the process of leaving following the primaries.