There are a lot of factors that you need to take in account when talking about vaccine hesitant people. Some big ones:
* Risk: people that don't think they are at risk of catching covid are less likely to get the vaccine. Many people in rural areas don't interact with people as much, and likely feel like they are less likely to catch it. You can also see risk evaluation playing out in other countries that didn't have large early cases of Covid (like Japan), where the fall 2020 wave wasn't too bad, so people weren't as worried.
* Trust: There are many that seem to feel squelching discussion that dissents from the CDC guidance is the best way to convince the skeptics. Sadly, those people that are skeptical will see this as more of a reason not to trust the ruling class. Preventing discussion isn't how to fight this fight.