It more disproves spontaneous generation, I mean evolution is a farce but this is far from the reason.
Well, the actual concept of spontaneous generation was disproved long ago - IIRC that concept was the idea that things like insects and whatnot just appeared by the will of God while people weren't looking under the right conditions. For example, if I leave a piece of meat out then maggots and flies will spring to life from it, probably because God did it. Of course science showed this to be wrong - Francesco Redi did an experiment using meat in sealed and unsealed containers to be precise. If these people are trying to act as if those supporting evolution support that theory, they're barking up the wrong tree even if they're correct that this kind of generation of life does not occur.
What the actual major scientific theory for the origin of life is is that in earlier times the makeup of Earth's atmosphere and oceans was quite different. The conditions allowed for the creation of organic molecules, which later managed to group together by chance and become extremely simple single celled organisms. Though the exact conditions are not known nor have they been replicated, the Miller-Urey experiment showed that the creation of organic molecules is possible using the gasses that were thought to be the main components of a much younger Earth's atmosphere. However, the peanut butter argument is again invalid simply because the conditions for creating a jar of peanut butter are not the same as those of Earth at the time life theoretically came about.
