Sorry, but you are wrong. There is a procedure for both purging voters and for voters to challenge that purge. Just showing up to the polls is not enough. This is from the Georgia state voter guide. None of these procedures were followed by Kemp and the voters he purged without their knowledge were turned away at the polls: https://faq.georgiavoter.guide/en/article/find-out-if-you-are-on-the-voter-purge-list