You’re making a critical mistake:
Democrats, correctly or not, see voter roll clearing as a vote suppression tactic. (Salon and Wikipedia would certainly say so.) Democrats argue there is no evidence of a large scale organized fraud (no death by machete), so the worry is purely suppressive.
Republicans, correctly or not, see voter roll clearing as an election integrity measure for preventing fraud. All it takes is 2% fraud, as you yourself admit, for a victory. Republicans are concerned about slow, minor, unorganized fraud in lots of little places, that might add up to 2% (death by paper cuts).
Until a narrative wins, this will continue; and any election victories will be ignored by the other side.