At least 10% of Americans don't live within 5 miles of any pharmacy, and nearly 10% don't have access to a vehicle, a number which is higher among no non-white populations.

Depending on what area they're in and local policies, undocumented immigrants may have difficulty getting the vaccine.

Those are just a few examples of situations that, due to your unexamined privilege, you're apparently incapable of imagining.

We've only just reached the 50% mark for vaccinated people. Certainly some percent of those don't want the vaccine, but included in the remainder are people who have difficulty getting time off work, difficulty with transportation, etc.

Similar issues apply for voting. If these factors weren't important, Republicans wouldn't spend so much effort trying to disenfranchise voters by exploiting these factors to make it more difficult for people to vote.

The idea that pointing these issues out is "posturing" is either a sad commentary on your obliviousness, or indicates that you're perfectly aware of the status quo and want it to stay that way. Neither is a good reflection on you.