Hehehehe. Liberals only see the world one way. I would play devils advocate to help answer your question from a Republican's perspective.
What if i say that if Democrats stop bus'ing people en masse to poll stations to vote, then Republicans wont purge the rolls in the hopes Democrats don't bring illegals to vote for dead ppl or have citizens vote for ppl who may be out of town. In other words,Republicans purge the rolls because of the aggressive tactics deployed by democrats on election days to get out the votes.
Zing.. Hehehehehe. There is always the counter-argument and the counter measure.