Clean the ocean of plastic

That's because nobody will look past the bad population to see that we also have people that will (or already have) become great additions to society.

Way to be negative. Isn't it possible that we could mass produce them so we could remove more plastic than we depose of?

Do you have the billions of dollars to pay for said machines? Every idea seems great in theory but in practice is impossible.

It really costs that much? Well I guess one is better than nothing then...