There are those that love Shakespeare, and then those that love the feeling of understanding something no one else can. Another example of a life full of empty pleasures.
The spring of wisdom spouts more from experience than labored thought, if only because it is hard to think about something we would never have thought to think about.
There are myriad reasons why people leave the Deen in this day and age - the slow rust of sin, scourge of skepticism and doubt, preconceived notions of the Truth, negative interactions with Muslims, hubris of intellect, the apparent rational appeal…