Completely irrelevant point. Vapid.
The important point is that ants are following pre-programmed instructions they're born with. Humans do not. All instructions about how to do farming are accumulated knowledge that's not genetic. Humans watch other humans do things, and not only are they able to pick up the behavior, they're able to individually say "I could do that better". And they do it better than what they observed more often than not.
The important difference is that how to farm spreads as ideas not as genes. Humans can decide to try farming something else, or to stop farming and do something else. None of that applies to ants. The comparison of human agriculture to ants cultivating aphids as saying "humans aren't any different" is just a bad argument. In fact, the very fact that ants mindlessly nursing some aphids is the go-to example merely serves to prove exactly how different humans are.
Humans can individually come up with completely new ways to manipulate their environment. The fact that some animals are pre-programmed to do some of the same manipulations in fact hammers home how different we are. We're like general programmable computers vs pre-programmed calculators. Sure, the general programmable computer can be programmed to do the same thing the calculator does, but that doesn't mean than they're the same. The fact that the programmable computer can be instantly rewired to do any task and the standard calculator cannot is the difference.