The NSA, the original primary developer of SELinux, released the first version to the open source development community under the GNU GPL on December 22, 2000.[6] The software was merged into the mainline Linux kernel 2.6.0-test3, released on 8 August 2003. Other significant contributors include Red Hat, Network Associates, Secure Computing Corporation, Tresys Technology, and Trusted Computer Solutions.
I have a feeling this is just looking for a clever way to say “but Linux isn’t as secure as everyone thinks”, which sure, yes. But also, not many people, especially knowledgeable people, are claiming that Linux is “secure”.
And when it comes to “privacy friendly” that depends so much on what flavour of Linux you are using (Ubuntu? a minimal Arch? Tails?) that it’s not really something you can make broad statements about.
And even then you could make Ubuntu the most privacy focused, secure distro ever with a little work - just as you could rip tails open and allow access to the world.
So yeah if they were regulated as the other commenter said, they’d essentially becomd illegal to use cause what system is 100% secufe