I am sure that you can find almost any AMA member that might have an issue with AMA. But why try to swim up-stream. Joining is easy and not really all that expensive. Join for a year or two. If down the road you feel it is not worth the money spent don't re-join.
Personally I have been a member for quite sometime. There are a few things I have seen go on with AMA I did not agree with but you will find that with any organization.
If there was a wish list of things the AMA could change #1 on my list would be the magazine. I am beginning to think I should quite flying R-C and switch over to either FF or CL. According to MA that seems to be the only type of flying that happens. That seems to be 75% of what MA covers. Just my opinion.
Carl Anderson AMA# 18633