Correct me if I am wrong, but what you seem to be saying Lua is that there are differences, but those differences are complex and not defined geographically. Then your view seems to be that the Muslim population in any country, from Saudi Arabia to America, is a combination of the different branches of the tree you describe. On that reading, the geographical differences are one of degree rather than kind. That both Britain and Saudi have, say, conservative Muslims who support the death sentence for apostasy – but Saudi probably has more.
Yes, that is what I am getting at, and I think your assessment is fair.
I do see that it is a trend among many young, Western-born or raised Muslims (particularly converts) to try to argue that the nastier parts of Islam are non-existent. When I was a Muslim apologist, if you came to me with anything in the Quran (I was a Quranist so that was kind of my thing) that seemed bad (women's issues, capital punishments, slavery, the list is long), I'd give you some excuse. Either it
wasn't what the Quran said for x and y reasons, or that these human rights violations were only carried out in circumstances that were nearly impossible to achieve, or that they were only true for a particular historical period and for a particular place and no longer applicable. Now, trust me, all of it is nonsense in retrospect, but the point is that that's what you're going to see very often among Western liberal Muslims or those who are trying to invite people to Islam in the West.
Now, for the remaining set, and this is the set that you're concerned with in your question since the above likely would say that there
is no death penalty for apostates, I think those you found would range from reluctant support to emphatic support of the death penalty for apostasy. If a Muslim believes that Islam prescribes the death penalty, they are faced with either supporting it or reexamining their beliefs.
I do think it is more likely to find the reluctant support in Britain than in Saudi Arabia. I also think it is more likely to find the people who say that apostasy isn't a capital offense in Britain, as well. So I do think you can find geographical trends, so to speak, but it is impossible to really understand without taking the interpretation issue into account, and that makes it a whole big mess.
Does that make more sense?