No. Without hydrocarbons there is no food to start with. We are way, way, way behind a point where the humanity could decide to stop using any hydrocarbons cold turkey and not mass starve in the billions. Then comes rest of the industry (on which food production depends). I hope the reality was different.

That is not to say rich world consumption is not a pathological facet of the equation. But it's far from being the only consideration.

There's a huge gap between "cold turkey into starving" and current goals (which are still not enough and also mostly won't be achieved). A transition away from fossil fuels that was just constrained by ensuring no mass starvation would look very different. This is not at all what the discussion is about. Meanwhile, mass starvation will be on the agenda at 3°C of warming...