Doubtful assertion

I have only read bits and pieces of Marx and about him but this does not seem right to me "I take Karl Marx's Guiding Idea to be this: One of the strangest features of human existence is that we are oppressed by things that we have created; but anything that is created by humans can ultimately be transformed by us, once we see through its apparently alien character and recognize it as a human creation, so as to be liberating rather than oppressive."  from Karl Marx's Guiding Idea