Well, sure, it comes from somewhere, but I don't think the desire to oppress others always comes from feeling threatened. And if it does, what of it? When oppression occurs, the first priority isn't to salve the neuroses of the oppressor. Understand what you're dealing with, sure, but treat bad actors as what they are.
Well you can not ignore something and hope it will go away - because it probably wont very soon - but you can make something worse. I wish I had an answer to all life's injustices but I just make some observations on human nature.