I guess I'm not sure what your standards are here. If you're expecting that there should be phones identical in every way to flagship models except that the battery is removable, I don't think that's reasonable, since the entire point is that the design requirement of a removable battery requires tradeoffs.

I don't understand the point you're trying to make about asbestos and leaded gasoline. I support those regulations because they cover much more important issues. As far as I know nobody's gotten lung cancer from not being able to remove their phone's battery.