Do you only work in extremes? Either 100% plastic, or 100% pv?
There is fuel that was pulled out of the ground, we can use it, or we can spend even more energy to pull even more fuel out of the ground and then burn that.
Which is better?
Saying "let's burn the plastic" without a plan to stop creating single use plastic creates a backdoor reason and economy to keep using plastic for everything.
> without a plan to stop creating single use plastic
Not to mention this is not something that will ever happen. No one is planning for this because it's a bad idea.
Plastics REDUCE CO2 emissions compared to the alternatives. Unless your alternatives are everyone not eat and not do anything, and just sit at home.
A tiny example: Wrapping an English Cucumber in plastic dramatically increases its life. Or you could not do that, but then we'll need to grow 3 to 10 times as many of them, and/or ship them by air to every store.
So what do you choose? The single use plastic? Or the alternative that consumes dramatically more resources, and emits far more CO2?