1. Yes it is, and yes you can! The best sources are hidden behind clunky and/or paywalled government sites. Collators like https://www.peoplefinders.com/ then exist to provide a bit better access to that information. For a price. In the US If you pay taxes or own property that’s all public information for us normal people.

2. Inaction has been shown to be more dangerous. For those kids too.

“think of the children!!!”

Really… Everyone, including those children, are suffering because of these people. A gentle “doxxing” (what is public available information for every other individual) as a warning is nothing compared to the harms they inflict daily.