There's the anchored functionalists, the evasive functionalists, and the metaphysical impossiblists. The anchored functionalists, have a threshold at which they will accept AGI and stick to it. The evasive functionalists will move their functional threshold because they feel uneasy about accepting an existence of AGI and the metaphysical impossibilists will never accept AGI on metaphysical grounds ie: it's incompatible with the way the universe is constructed/reality.

I agree, there's going to be a point where AGI ends up existing, modifying social relations, and reshaping society and we're still going to be having this conversation. It feels as beyond the pale as someone who would today who would believe in a flat earth, epicycles upon epicycles in order to support non-existence.