i went to frum schools all my life and i went to touro college. i did not have to deal with the outside world and the world of the goyim until i got a job in a secular company. if i would have believed the frum cultural notion that everything goyish is the work of the devil i surely would have left the fold.
there are good secular people and bad secular people . there are good goyim and there are bad goyim. we keep the torah because we are jewish and because the torah is true, not because everything else is "bad".