I agree that their interpretation would work that way, however, I don’t see how they can pretend their interpretation of the second amendment is anything like that of the first
Unfortunately, the highest law of the land disagrees with your interpretation at this time. They have this whole "plain meaning of words" mindset. The typical 3rd grader reading the 2nd Amendment would think "oh ok, I can have a gun". Therefore, that's what the 2nd Amendment means now.
They restrict time and place of first amendment rights constantly.
Yeah, that's covered by jurisprudence based around the needs of the country. And the law is right that the First Amendment doesn't say the freedom of speech is the freedom to disrupt (preventing people from going to their destination, vandalizing property, etc). But if you needed to buy Free Speech Insurance, that would get shot down as unconstitutional.