Conspiracy theories don't even make sense within their own universe any more. At a mass vaccination clinic, there is no "black line" or ""white line", people just randomly get in line, and since a vial has multiple doses in it, it's obvious the same vial serves all races of people in the line.
Favorite recent meme I saw "People who believe in conspiracy theories have never been project managers." That is, when you know how much of a herculean task it is to organize a group of say 20 people with a relatively small project, you understand how impossible it would be to have some mass, global conspiracy where everyone managed to keep their mouth shut.
It's not about how ridiculous the conspiracy theory is when considering the full context. Obviously it's not the case that the US is using the COVID vaccines to experiment on certain races while excluding others.
It's about why someone might believe such a thing and what you can to do to try to convince them otherwise.
"They use the same vials" isn't a great argument to give to a skeptic. Unless you manage to get in the back rooms and observe the full chain of custody of every syringe, you can't know for sure you're getting the same thing as someone else.
If your existing prior is that you are likely being deceived and tricked into receiving something that may harm you, it's rational to think they'll use techniques to make it seem like you aren't receiving any special treatment.
"Back rooms"?? Where I got vaccinated was on a big basketball court where there were rows and rows of vaccination stations. It was all literally out in the open where you could simply watch who was getting vaccinated.
Presumably they're using different syringes for different people in any one sitting, right? If there were a plan to inject some people with something different, the people administering the vaccine could hypothetically decide which syringe to use based on some tiny, subtle marking or alteration that the public wouldn't notice.
If you could see that every syringe used was filled from the same "output port" (don't know the actual term) on the same storage device, then it'd be a lot harder to accuse them of anything.
I dont mean to sound like a conspiracy theorist, but there is also only a single line at school, at colleges, at jobs, and at the courthouse -- yet outcomes are very, very different between different groups.
If you're that concerned about getting the "wrong" vaccine, you could just lie about your race when you sign up (of course, that would only deepen the racial divide in vaccination statistics)
It might depend on how you get the vaccine. I went to a mass vaccination clinic and was never asked to identify my race, but a family doctor presumably has that information on file and might report statistics to local health authorities?
I did. Almost all government adjacent forms ask you to specify your race. There's even a standard one when you get hired somewhere. There is almost always a 'decline' option, for whatever that is worth.
I mean, I'm white, and I'm pretty sure that they are, but I could forgive a black person for not being so sure.