Both lds and islam threaten your soul, which eternal.
Do I know anyone who was told convert (to lds) or die, nope.
Do I know people who were told either convert or be shunned, yep.
Do I know people in lds that were told leave lds and you will die, yep.
Do I know people that tried to leave and died, yep.
Again, however you keep talking about overseas not the US.
If Romney were running for president of the world your points might be relevant, he is not, so its not.
Romney is running in the US, so his belief system is important as it is with anyone who is running for office.
Which means that if I don't want to convert to LDS (and I don't want to), I won't be forced to do such at the point of a gun - or killed if I refuse.
Nice job trying to downplay that fundamental aspect of religious freedom with the rest of your statements.