That doesn't actually 'prove' anything.
It also doesn't say that the current patent system is anything like what was intended.
It's much easier to argue against made-up positions; you'll never hear me say that there should be no protection for innovation, only that what we have now has swung to far in favour of limitless patents, excessive litigation, and a general stifling of innovation from all but the biggest players. If you or I, as independent thinkers were to invent something truly creative, but in an existing field, what would protect our profits? The best we could possibly hope for is to sell our idea to a large corporation, at a tiny fraction of the real value of that idea.
The system needs to be simpler, more selective at the 'approval' end, and less susceptible to litigation. Length of protection needs to be shortened (especially for things like software patents). In general we need a system that allows inventors to be rewarded for their work, but does not then hold society hostage to that work indefinitely.
To be honest though, I don't think you've even made a strong case that the current system is better than 'no patent system at all'.