Well done! You ignored the main point right under the point you decided to respond to.
You seem to have issues trusting scientists - despite the entire modern world being built on science - and have no problem believing groups that are even less trustworthy.
As I said: you have no compunction putting faith in other people that you have to take on their word. You have faith that the wheels won’t fall of your car, and the plane won’t fall out of the sky, your putting your faith in the engineering quality of the specific vehicle you own. You have to put faith in your seat belt not being poorly designed, or part of a bad batch.
Unless you live in a cave, you’re required to trust and put faith in the positions and opinions of others on every level where you have clear choices to do otherwise.
Now, as you pointed out, perfectly : you seem to trust the conclusions of the scientific community about the effects of lead, that there’s possibly traces of roundup in your cereal, that flints water supply has high levels of lead in it.
You're not being skeptical - simply picking and choosing which set of scientists you would inherently trust based on whether their conclusions agree with you.