I think when people act like this they get a little irrational even if they have credentials and education. For example, the concern is limiting plastic intake. the solution is to limit it at home apparently, because this is within our realm of control. It's a fallacy though.

However, if this was approached scientifically, we might ask ourselves to identify where these plastics are most likely to come from when we get in contact from them. Are these few levers in our control really having any effect compared to the levers we have no control over that probably also contribute significant plastic in our lives? That is the first question to be asked before any action IMO. It is humbling I am sure to know of a problem but also subconsciously at least know there isn't anything you can do about it. Like most other pollution I guess; you have to breathe that air at the end of the day. And your only salve is the scientific community gathering evidence of these effects so that regulation might be written to target them specifically. Individually, we are powerless.