You may not have but that was the 'scare'.I don't think I mentioned 2050.
Namely: that the population of the UK, Europe and the US would be 50% muslim by 2050.
As I pointed out, the muslim population of the world would have to increase by a factor of more than three to achieve 50%.The muslim population of the whole world is irrelevant. I'm talking about the potential muslim population of the UK.
In the UK the figure required is a twenty-fold increase and
in the US a 107-fold increase (not to mention the mass Hispanic immigration).
I think you are failing to take into account my 2nd, 4th and 5th points above.
The only figures I can find state that 1.8% of the population of Saudi Arabia are Hindu, Buddhist and Sikhs (no figure for Christians or atheists) but I think it fair to assume that the percentage of the population who are NOT muslim will be about the same as the converse here.
Are they going to attain 50% in thirty six years?
I think you are including 'guest workers' (who are there because the Saudis are incapable of running their country on their own!). Any religion other than islam is illegal for the indigenous Saudis.