To be fair, the US was smuggling guns and other aid to Germany's enemies, so it makes sense for them to put an end to that. The US was already involved in the w

To be fair, the US was smuggling guns and other aid to Germany's enemies, so it makes sense for them to put an end to that. The US was already involved in the war, they just didn't have the full military on the ground, which needed a declaration of war, which the attacks on the transport ships allowed. But I definitely agree that it has pretty much nothing to do with the OP's point.