Declare these vestigial beasts bankrupt and extinct and sell off the assets.
Do away with vertical integration!
Let small design companies make innovative designs to sell to the highest bidder. Let small, nimble and innovative manufacturers build better parts more efficiently through competition. Vertical integration allows any aspect of the design, manufacturing, distributing and sales process to bind the hands of all the others. When each component has to compete to work with the best producers in all the other fields, the producers and consumers win.