So the mRNA vaccine is not safe for those people? Genuinely curious. Plus, in any case, they should probably take cautions themselves if they know they have not been vaccinated for those reasons.

Currently people with strong allergies are not recommended to take it, since it can lead to allergic shock. Then my prediction is soon that people with autoimmune diseases might be recommended not to take it, and later people who have an infection leading to have reverse transcriptase in their body (the last two is just my glass ball telling me)

Then the vaccine is not approve for youth below 16 (if I remember correctly)

And what about the 5% not respondinding to vaccination, they don't know that, so everybody should continue to take precautions?

I have an autoimmune disorder, so I am reluctant to take it, considering how early it is, and that I have been exposed to COVID-19 and I most likely have/had it.

No, I am just saying that you cannot realistically expect everyone to care about your health, so you should take precautions as much as you can, because presumably you care about your health (much more than randoms). That is all.

It is possible to get a blood check to see if you have antibodies from a previous infection.

Yeah, I am planning to do that.