I wouldn't call it full-on "real protest songs", but I actually enjoy the duology of Jennifer Rostock - Hengstin and Bass Sultan Hengzt's "cover" of it.

Jennifer putting out thesis and some things I could see as facts about how women are treated AND treating themselves, whilst BSH takes a more commedic approach to representing the dumbest man possible - in a way.

So, not the most protest-y songs out there, but I find their respective messages quite powerful.

That said, both songs are not for everyone's taste on a purely musical level. I like them, but... they certainly have a style to them. ^^'