Stop using the term "NIMBY." It's insulting and derogatory to many decent people who have legitimate concerns that a project will threaten their home or family. 

NIMBY efforts are often easy to organize.  A few neighbors oppose any change, or are adamant about their prejudices.  They go to other neighbors, who feel they don't have enough information, or who have concerns about traffic, or burdens on local schools and other services, or effects on property values, or aesthetics, etc. 

Anyone is liable to criticize any proposal about their neighborhood if they see it as potentially harmful.  Defusing opposition means recognizing each individual's concern and making sure legitimate issues are fully and fairly discussed, case by case.  How will traffic problems be resolved?  What is the plan to mitigate school impacts?  What exactly are the concerns?  Let those who are most bigoted and adamant speak for themselves, not the neighborhood. 

Every time a legitimate concern is fairly addressed it will serve to isolate the hotheads.  The vocal and intolerant minority won't entirely disappear, but their support by fair-minded people will evaporate.  Pejoratively labeling everyone a NIMBY lends undeserved strength to the opposition, and decreases the ability to foster constructive community participation.