Sharia law has nothing to do with music classes.  If parents choose to raise their kids according to cultural norms, who are you to tell them otherwise?  Do you similarly force Jewish people to drive or work on Saturdays becuase that is the way you were raised?

Your other points  are valid, but should be applied uniformly and not just against one single group.  You should knock down jihadi websites, and also white power websites, nazi websites, etc.