in 2017 this matters for absolutely nothing. Germany and France have been at war for decades, does that mean if both their leaders were paranoid and warmongering they'd be justified? No, it's a different world.
As I noted in another thread, Putin grew up in the immediate aftermath of WWII. And he's from Leningrad. And then there's the Cold War, and the collapse of the Soviet Union. So yes, he has issues about all that, and so do many other Russians, and that's why he's so popular.