> Source bias is a real logical fallacy

This is irrelevant because we’re not using the source to judge the strength of an argument. Logical fallacies have only to do with the strength of a logical argument, nothing else.

To illustrate this, if I sell you some energy and you ask whether the energy comes from burning children or from a solar farm, I can’t say that it’s a logical fallacy for you to care because all energy powers your home just the same. You don’t owe any consideration to the content (energy) at all, because energy is not an argument that is subject to the source fallacy, to treat it as such is a fundamental category error.

Even to take your tack and say “We should consider the energy generated from burning children apart from its source, because we don’t want to fall prey to the source fallacy. However, the societal effects should also be taken into consideration…” shouldn’t be countenanced.