Don't you love people who first buy a house near an airport and then... complain about the airplane noise
!
I agree entirely with you there but the protesters are ( mainly) from an area which has been there a long time and they are protesting about noise from the new runway. I don't know if this is used by freight or not.
They are also protesting because the former "premier" of Hessen, Roland Koch, made certain commitrments ( forget if no of flights or duration of night-time closure ) which he then ignored .