Got it, ta. So we’re saying the faith is flexible and open to (eventual) change?
Well, the change in this example being the Romans smashing the temple and kicking us out the country, yeah.
Answered right there.
But it doesn’t answer why.
as a safeguard against violating it
¯\_(ツ)_/¯
How do we suppose a non-Jew is going to be bound by such prohibitions? You can ban what you like, I’m watching Strictly in a minute and I know it’s your favourite.
You can do what you like. I’ll ignore it or, worst case, leave the room.
But it seems awfully presumptuous to demand that non-believers toe the line
Not at all. Just don’t do certain things specifically for my benefit and not yours. Not a hard ask 🙂 You can even do that if you like! But then I can’t benefit, so it somewhat defeats the purpose. In fact, you’re not allowed to keep the sabbath even if you wanted to. Don’t tell me you’re getting miffed about that, now 😉