This is ridiculous. The body as anything in nature is always struggling to stay in balance. To maintain this balance it had millions of years of evolution to optimize strategies that counteract external and internals effects. But in general the chances are much higher for a neutral/bad result in case of an external intervention for which our body was never put in contact before (not even in past generations as in the case of lipid nano particles).

In general people hates to accept that not everyone reasons in the same way. Many societies aren't as trustworthy as you are to whatever decision is taken by their elites (being either for historical or cultural reasons). You need to accept that many would consider something in front of them poisonous until the contrary is proven (as opposed to more trustworthy people who sees everything safe until proven poisonous).