I wasn't entirely sure what to expect when I made the decision to tell my parents how I really feel, but I was prepared for the worst, fortunately, it didn't come to that. After I told them I didn't want to go to the meetings anymore it led to a long talk with them. They made a number of irksome and woefully uninformed statements but at least they were not aggressive and have said that they won't force me to move out over this, though, I can tell they are hoping they can convince me to "accept the Truth," as long as I still live with them. As far as I can tell they will still shun me as soon as I leave their home, but at least now I have more time to prepare for that eventuality and no longer feel as if I have to hide the fact that I have been making "worldly" friends.
They seem to think that my desire to leave is simply because I have "hurt feelings over being disfellowshipped," and that I "lack the humility to accept discipline," so I've clearly made no headway in convincing them that this is an informed decision, but ah well, at least I don't have to feel like I'm living a lie anymore.
I think the thing we discussed which I find most pitiable is that they feel if God doesn't exist then our lives are completely meaningless, my father actually said that "If Jehovah doesn't exist one may as well shoot them self in the head." That kind of statement implies that they don't believe that raising children, finding love, being a good person, or trying to make the world a better place have any value in and of themselves. That if one can't exist forever then they may as well not exist at all. Personally, I think that is why they are so unwilling to accept any evidence that their religion is wrong because they are afraid to. If God is not real then from their point of view their life has no purpose at all.
Anyway, I just thought I would let anyone who was interested in my story know how things have worked out so far.