And then you make movies on how you were the good guys, and that's how we all will remember it.

I'm all for a collective change there, so every foreign movie just ends in the same deus ex machina moment: every protagonist gets bombed out of existence. Might get repetitive after a while, but I guess that's the idea.

Also the enemy is always a guerrilla, terrorist, or a rebel and works for a regime, dictator, or king.

Part of the reason why countries stopped declaring war is because the laws of war make it harder to do so, so it's easier to have a war without one. Also, declaring war on certain groups would entitle them to being treated as war combatants, and people don't want to extend that privilege to terrorists (al Qaeda, ISIS, etc)