When you are speaking of “wars”, I assume that that has something to do with Russia-Ukraine conflict.
I agree that it is not effective if we fight wars against each other because we are all on the same side.
However, since the dawn of human history, all of the wars were propelled by those in power. Conspiracists give the label to them as the Deep S, the Black H, the Reptilians, Satan, what have you.
But very practically speaking, as a soldier, if today the country asked you to go fight in the battlefield, you wouldn’t have many options. You can be very righteous and refuse and quit. Then you lost your job, and who is going to pay your kids’ tuitions? Or say if you were a reporter, and the upper hand was asking you to put out some propaganda; you could be very aware of what you are doing, but again, you could say no but lose your job.
Ideally, like you said, we should all unify and rise up. But we are deep in this because of the monetary system. As long as society functions under the influence of the money system, people are chained and divided. That is why I was excited by the hearing that the economic reset or “quantum finance” would soon occur some years ago. But years have passed, the promise remains unfulfilled.