not exactly, if u read how these guys won.. there was always a treacherous hindu who helped these scum... if not for selfish hindus there was no way that ghouri, ghazni, or anyone could have won over the throne of delhi...
whether it was ambhi raja who helped alexander against puru; shiladitya with babur against the valiant rana sanga; man singh and other rajputs with akbar against the great rana pratap; the traitors who helped clive against siraj-ud-dowla at plassey... the list is endless
all the above mentioned battles have changed the course of hindustan's history and all have been won because of traitors. there are many other such examples.
so hinduon ko yahi seekhna chahiye ki ghar ka bhedi hi lanka dhaata hai.