Sorry, but that's incorrect. The major browsers will let you in - you just have to pass all their audits, comply to all their regulations, and commonly have a W

Sorry, but that's incorrect. The major browsers will let you in - you just have to pass all their audits, comply to all their regulations, and commonly have a WebTrust audit....which can set you back mid-$xx,xxx. All browsers/OSs are accepting new roots all the time - check the Mozilla dev lists/Bugzilla and you'll see.