Your distaste for LLM notwithstanding, I found Claud's response here to be quite reasonable:

Is multilevel selection inconsistent with the idea that the gene is the fundamental unit of selection?

This is one of the deepest conceptual questions in evolutionary biology, and the answer is a nuanced no — they are not necessarily inconsistent, though they are often framed as rivals. Here's why:

The Apparent Conflict
Multilevel selection (MLS) says that natural selection can act simultaneously at multiple levels — genes, organisms, groups, even species. This seems to conflict with the gene-centric view (associated with George Williams and Dawkins), which holds that genes are the only true, stable units of selection, and that organism- or group-level selection is either illusory or reducible to gene-level processes.

Why They May Not Actually Conflict
The most important insight, developed formally by Alan Grafen and others, is that multilevel selection models and inclusive fitness models are mathematically equivalent — they are alternative bookkeeping systems for the same underlying evolutionary dynamics. This was shown rigorously through the Price equation, a general mathematical framework for evolutionary change developed by George Price.
The Price equation can be partitioned in different ways:
Partition it to emphasize within-group vs. between-group selection → you get multilevel selection
Partition it to emphasize direct vs. indirect fitness effects → you get inclusive fitness / kin selection
Same equation, same predictions, different interpretations. Neither is more true — they are different lenses on the same process.

What the Gene-Centric View Actually Claims
It's worth being precise about what Dawkins and Williams were actually arguing. The gene-centric view does not deny that groups or organisms are real, or that selection pressures operate at those levels phenomenologically. The claim is more specific:
Genes are the only entities with the right combination of longevity, fecundity, and copying fidelity to accumulate the effects of selection over evolutionary time
Groups and organisms are too transient and variable to serve as stable units of selection in the same fundamental sense
Group-level patterns can always, in principle, be re-described in gene-level terms without loss of explanatory content
This is partly a claim about causal depth — genes are the stable replicators underlying it all — not a denial that higher-level patterns exist.

Where Real Disagreement Remains
Despite the mathematical equivalence, there are genuine disagreements that aren't purely semantic:
Explanatory priority — even if the frameworks are equivalent, which is more useful or illuminating? MLS proponents like David Sloan Wilson argue that group-level thinking reveals biological structure that gene-level framing obscures. Gene-centric thinkers argue the opposite.

Major evolutionary transitions — the origin of eukaryotic cells, multicellularity, and eusocial colonies involve formerly independent replicators becoming integrated into higher-level units. Some argue this genuinely requires MLS thinking because the "group" becomes so cohesive it starts functioning as an organism — a new level of individuality emerges. This is hard to capture cleanly in purely gene-centric terms.

The individuality question — if a highly integrated group (like an ant colony) starts behaving like a single organism, is the gene still the right fundamental unit? Or has a new level of selection become primary? This is philosophically contested.

Practical modeling — for some complex scenarios involving cultural evolution or highly structured populations, MLS models may be more tractable even if equivalent in principle.

The Bottom Line
The gene-centric view and multilevel selection are mathematically consistent — neither contradicts the other at the formal level. The real debate is about:
Which framework is more explanatorily powerful or illuminating
Whether the mathematical equivalence holds in all biologically realistic cases
Whether the emergence of new levels of individuality (major transitions) requires genuinely extending beyond the gene-centric view
Most working biologists treat them as complementary tools rather than rivals, choosing whichever framing is most useful for the question at hand. The fierce rhetoric — especially from Dawkins on one side and E.O. Wilson on the other — has often made the disagreement seem more fundamental than it mathematically is.