In theory you are correct however I would compare the pyrolysis method that CLNV is using to nuclear fusion; once you begin the process it is self sustaining.
As long as CLNV has a virtual infinite supply of waste plastic and their process is very efficient, they will have no problem generating hydrogen fuel economically. Collecting all this waste plastic that has not been efficiently collected is obviously key to their success .
I understand that there are a lot of “ifs” in what I have said above and I am trying to get a better understanding of their process but at this point it appears that it will work.
I would appreciate any feedback from anyone who can provide more information.