I am from Australia, by the way. Have a Muslim friend who secretly hates the religion but she is too scared to do anything about it, and so I'm hoping one day she can be true to herself if she is not happy. I assume there are thousands more Muslims who want out but are too scared to renounce their religion?
I'm sure there are, the death penalty for apostasy, imprisonment in so many nations for apostasy & even otherwise, the general strict family pressure forces many a Muslim not to renounce Islam officially.
Quite a few members here haven't yet "come out" to their families.
But there are also families which do accept apostasy, we have members whose families know & accept their choice.