This gives people a great excuse. In the coming months, once the government starts randomly stopping people and checking for their vaccination card, all you have to say is 'I tried' but I'm White so they wouldn't give it to me.
The other big advantage is that the Blacks get to work out all the problems before the White people get it. If the vaccine does cause blood clots, heart issues, or any other health problems, the Blacks will get it first. And the scientists will be able to fix all the problems before it gets to White people.
This is obviously 'race hate' and reverse discrimination. But it is not All a bad thing. There are some benefits to it.