I like you pointed it out.
Cold War has its own, counter-intuitive logic. It is governed by game theory.
If war is bad then why US invests so much in war machine? Well, probably because investing nothing is historically bad way of maintaining peace. You are just inviting a bully to come and take your toys.
Looking from this point of view isn't it strange that so many people treat Russia as villanous because it invests so much in their military (or it has been investing)? I really wonder why people think it is ok for US to militarize itself but for USSR or Russia to do that it is somehow bad. I, of course, intentionally omit what the country is doing with its power, it is one thing to have military and the other thing what are you using it for.
Now, if US sends its troops abroad to subject some country, is it so difficult to think that USSR may feel threathened? If the way to keep peace is to keep parity and one party is trying to upset the parity the other has no other choice than to respond.
This game has many paradoxes and I feel people have not enough willingness to look at some geo-political events through the lens of a longer game.
We may say we want to bring democracy to Venezuela but what Russia is seeing is their power slipping. Right now they have precious little friendly land close to mainland US and they have no prospects of gainging more. At the same time, US is expanding NATO with more and more countries close to Russia border. Why is it so difficult to figure out this makes them very uneasy? Wouldn't some kind of response be expected? Why would US be surprised by it?
Up until now the game was to keep parity and now the parity is slowly eroding away. This absolutely must cause a response from Russia because the theory says they have to fill the void some way. Electronic warfare? Hacking? Meddling in elections?
Each side wants, understandabl, to mobilize its population in this struggle and there is no better way than to paint the enemy as a villain. I just wish we keep healthy amount of population on all sides capable of seing through cheap propaganda.