Those companies can produce legal abstraction hacking solutions faster then you can develop shielding ones. You needs something poisonous ,costing money or work with each usage preventing mass adoption without a complete rewrite .
Open source will inevitably succeed, but only in the long run. In the short term VC (or tech giant) cash will dominate any conversation. There's absolutely nothing you can legally do from preventing reimplementation (which is a good thing, because it means over the long term we will reimplement everything as free software).