Well, the parenthetical says “(though it could in theory come with benefits too)”; you could be making a good case for that happening in practice. My statement is just agreeing with the OP that there is a big cost pathway there—even in your example, there’s a bunch of bad stuff that happens from increased symmetric enmity; e.g. it would probably become harder to help A see the error of their ways, the B team would probably end up doing a bunch of enemy stuff purely for the sake of enmity which doesn’t actually help much, A might become B’s enemy and then successfully smack down B, both sides would be spending resources on conflict rather than doing anything in the intersection of ~all human values (such as for example A spending more resources on thinking and getting a better understanding of how their plans are bad for the world / for B), etc. I think the OP is trying to say this narrow point, e.g.:
[...] I think those activities are increasing AI risk, including but not limited to extinction risk. However, that’s a stronger claim than I intend to argue here. Rather, I’ll just be presenting a simple and harmful causal pathway [...]
Well, the parenthetical says “(though it could in theory come with benefits too)”; you could be making a good case for that happening in practice. My statement is just agreeing with the OP that there is a big cost pathway there—even in your example, there’s a bunch of bad stuff that happens from increased symmetric enmity; e.g. it would probably become harder to help A see the error of their ways, the B team would probably end up doing a bunch of enemy stuff purely for the sake of enmity which doesn’t actually help much, A might become B’s enemy and then successfully smack down B, both sides would be spending resources on conflict rather than doing anything in the intersection of ~all human values (such as for example A spending more resources on thinking and getting a better understanding of how their plans are bad for the world / for B), etc. I think the OP is trying to say this narrow point, e.g.: