The reasons people leave the WT Organization are many and varied. Some leave for one reason only, but most leave for several. It's usually just not that simple.
But the completely dishonest thing about the WT is that it characterizes ALL who leave as wicked and as leaving Jehovah. I know personally that many leave to be CLOSER to Jehovah.
It is equally dishonest to label the "leaver" as preferring his worldly lifestyle to a relationship with his family. That is just so much crap it's hard to hear it without getting angry. The fact is, it is the JWs that put these bogus conditions on the relationship. Virtually everyone that doesn't want to be a JW any longer would still love to freely associate with friends and family members that remain "captives to the concept." Let's place blame where it is due: it is the JWs that discontinue the relationship and shun, not the other way around.
Their so-called "logic" is no different than that of any abuser that blames the victim for their abuse. It is shameful and wrong. The people that leave because they disagree and want to pursue their own lives free from the control-freaks in Brooklyn are the courageous ones.