In Morocco it seems like the people I know don't really care, the Arabs just think that Berbers are strange because they speak a different language, and their writing looks funny. Also there is some racism because some of the Amazigh people in the south (around Marrakech) have the stereotypical asian eyes (not sure how to describe it other than that, but I hope that people know what I mean). The nothern berbers in the Rif mountains are mostly stereotyped as weed growers, but I struggle to figure out if it's an insult or not given the importance of weed to the moroccan economy.