OK, went to your link and read:
"No Lodge can interfere in the business of another Lodge, nor give Degrees to Brethren who are members of other Lodges. This Landmark is founded on the great principles of courtesy and fraternal kindness, which are at the very foundation of our Institution."
Basically, I don't care what masons in Saudi Arabia do. If they come to my lodge, they book of the Law would be the King James Bible.
And my further point that, freemasonry would mean little to non-Jews or non-Christians remains. Anyone who knows anything about masonry would agree.
Then why are there lodges based upon other religions? Not as many, of course, but they are there.
And I wanted to point out that each of the Grand Lodges in the United States dictates that in all of its lodges, all religious texts are considered equal and serve equally as well in the lodge. If your Master decides that the Bible in your lodge should be replaced by the Koran and the vote is passed, it is so.
Further, you've never heard of a 1st degree member who has taken a 2nd degree at another lodge? You don't think that this is so? Ask around.
You've never heard of all-degree days in which the 1st, 2nd and 3rd degree are done in one lodge in a district and the new member actually joins another lodge? Funny, I've participated in them. I also did an all-degree weekend for the Scottish Rite in the Scottish Rite Theatre at the Masonic Temple in Detroit.
It turns out that I was highly ignorant of a lot during my active days - I was the 3rd degree team leader and made it up the chairs to Senior Warden before I moved out of Michigan - and I'd suggest that you might benefit from some reading yourself.