Instead of trashing his principles, perhaps try to see the motivation behind them. I respect anyone who establishes their own code and adheres firmly to it. RMS meets this criteria. He is also very open and honest about his views which I find refreshing.
I also think that this type of boycotting/selectively using technology will become far more common with physical hardware as it rapidly develops. Robots will not smoothly integrate with everyone's tastes.
Consider a highly sophisticated sex robot not noticeably different from a normal human. I can imagine there will be a strong division of people for and against this type of human intimacy replacement.