You need brush up on history. The Soviet Union putting nukes in Cuba is because unknown to the public at that time (even today the masses don't know) the US was the first to put nukes in Turkey and Italy. At that time Turkey was sharing a land border with USSR and very close to Crimea black sea fleet. So the Cuban missile crisis was direct response by USSR.I both do and don't see the point about NATO. Some draw comparisons with the Cuban Missile crisis in terms of provocation but there's a big difference - NATO is simply a defensive pact. Cuba was about putting nukes next to the US. I think if NATO decided to put short range nukes in Ukraine, then there would be valid point. But apart from speculators and Russian claims, I don't believe that was ever the plan.
I also agree, most ordinary people simply want to live their lives in peace and it's money grabbing greedy politicians who want war over resources or simply to cover up their policitical failings by using it as distraction. This side of the provocation of an invasion of another country (no further comment here), I can't see any valid reason for war.