If you go to England you'll find a more diverse range of dub tracks. Its fine that you wish to maintain this idea of "dubstep sucks ololol," and a lot of the stuff you hear does indeed suck... but to say its all shit without even considering the merits of legitimate dub artists is kinda stupid.
Its like saying all rock sucks because Nickleback is shit... or all rap sucks because of Lil B and Rick Ross etc.