I think you will find that most girls on this forum that had their wedding at a resort didn't get charged for outside vendors. I know my location certainly didn't (it wasn't a resort though). They had vendors available to me, and if I chose to use them, great, if not, then there was no additional costs or fees.
As for this comment, "I don't know what you hope to get out of a BOYCOTT?" I think the answer is pretty clear. We hope to get them to change their policies. Simple as that!