It's all true. WTF indeed. Here's a letter from over 90 LGBTQ and human rights organizations with more detail. EFF's article from in May, which is the one they linked to in the original article, has good info to.

This is already the case access adult content in the State of Louisiana and a few other states.

Adult entertainment group sues Louisiana over age-verification law for porn - AP News 2023

All the issues KOSA is aiming to address are also issues that affect the general population. I would say legal age teenagers and young adults are affected just as much.

If the issues are deemed harmful enough to require legislation, then it should be addressing the issue themselves rather than adding harm by passing insanely privacy violating bills.

And when it comes to children, parents should be responsible for what their children as exposed to on the internet. This debate is decades old and it's pretty much been settled. Despite the society being strongly against exposing children to any sexual content, porn websites don't have any age verification. Parents are responsible for what their child views on the internet.