listen to punkofnice.
If you want to DA or be invited to a JC, Simply say,"I used to believe that, but now I do not." This is good for your own peace of mind. It all depends on your loved ones, what you want to accomplish, etc.. Even if you just say it to yourself. Try it. See how it makes you feel. I find it very peaceful.
Many Witnesses are not in a position to show love because it becomes about them. How will they be affected by talking to us? Will the elders begin to question their loyalty? Is their everlasting life going to be taken away as a result of contact? The foundation for this thinking is: The religion is true, so the person not "whole souled" is defective. The questions are not to help, but to evaluate potential danger.
The point is you better know your audience when saying anything to them.
Witnesses can become very insecure when their comfortable world is questioned. I am afraid your comment "I no longer wish to be considered bloodquilty thanks," will be perceived as a comment about them. Their possible response: "so you think the work of Jehovah's Witnesses causes bloodquilt?" Now you have the baloney hitting the fan. That is not what you want is it?