This sounds nice, but in the context of actual politics it's completely meaningless.

It's like saying that some people are dangerous criminals who need to be locked up, and other people are upstanding citizens who should be free to live their lives. Everybody would agree with this. The disagreement is in how you sort people. What category encompasses someone who belongs to the opposing political party? That sort of thing.

Regulation should definitely be justified by scientific data. Who gets to determine what's enough? Who gets to determine what counts? Leaded gasoline is a great example. It was pretty well understood when it was introduced that lead was hazardous and dumping a bunch of it into the atmosphere was unwise. But this was evaded, denied, and suppressed for decades.

Even today, it's not settled. Lead is still used in aviation gasoline in the US. It's being phased out, but it's been in the process of phasing out for a couple of decades and there seems to be no urgency in it.

You'll find plenty of people disagreeing with pretty clearly beneficial environmental regulations because in their view those regulations are not supported by the data. They would completely agree with your statement, while saying that pollution from coal power plants is no big deal, climate change is a myth, etc.