Even if it doesn't modify DNA, it's still intercepting and altering the instructions given BY your DNA.
Let's try an analogy.
You weren't able to compromise the loyalty of the king. But you were successful in intercepting and modifying his orders to his War Generals. Therefore, you sabotaged their order and won the battle.
Yes. The JNJ adenovirus version does modify DNA. Pfizer and moderna are mRNA which might also modify DNA- remains to be determined
The liver cells angle. There was another study on something similar a while back may be worth researching
Even if it doesn't modify DNA, it's still intercepting and altering the instructions given BY your DNA.
Let's try an analogy.
You weren't able to compromise the loyalty of the king. But you were successful in intercepting and modifying his orders to his War Generals. Therefore, you sabotaged their order and won the battle.