You’re pretending that it’s a simple question. It’s not. It’s a very complicated question that requires a lot of background and education to understand. Judging from your comments, I have my doubts that you have the education or knowledge to understand, kal v’chomer explain, what the vaccines do. You say “Whether the mRNA enters the nucleus of the cell or not”. Does it? Doesn’t it? Is it common? Uncommon? Is entering the nucleus a bad thing? None of these have straight answers and none are answerable by anyone without extensive education and experience in the fields.
I see what’s going on in countries with high coronavirus rates per-capita. Countries like Israel which is seeing right now peak Delta-variant hospitalizations which are not even as high as the lowest rate of hospitalizations before the vaccine was distributed.
And stop with this CNN-style fear mongering about “untested vaccines”. They’ve been out and tested on millions for well over a year. That’s longer and more widespread than most FDA approved medications.
So unless you’re willing to deny any and all medication, hospital care, and doctors, you have to stop scaring people about the vaccine. Facts don’t care about your feelings. You’re feeling scared, but the facts are that the vaccine works and is far less dangerous than the possibility of COVID.