I’ll note that there is a long history of manufacturers overstating the impact that environmental regulation will have on their business; the EPA numbers for financial impact are always based on “keep the existing process as-is, but add pollution controls” and not “Change how you do things to avoid producing pollution in the first place”
The “number of lives saved” is a totally made up fake number. It’s not worth destroying the already dwindling American manufacturing industry just to remove a small amount of pollution.
It’s something that’s scientifically supported by the natural experiments tracking death rates in locations with different amounts of air pollution