Black guys getting medical no-shaving waivers is pretty common. I guess they can tend to get a lot of ingrown hairs when they shave. However, there also are some products that let them shave without razors, and I know plenty of black guys who used them.
I honestly don't see how you can hold Garland in contempt when there is a claim of executive privilege asserted by Biden. If a court had already rejected that claim, then sure. But when it hasn't yet been adjudicated, then no.