If it wasn't Putin it would be someone else eventually. You can't win the whack-a-mole game forever.
Let's say we could repeat things without Putin. Facebook and Google and tech companies would have kept growing naively, making it easier and easier to break the system over time. Eventually some team somewhere would infect social media and use it against the USA.
I would actually argue that when humans are exposed to too much information their ability to make rational decisions actually goes down, and we are more likely to use our emotion to make decisions. If you e ever felt burnt out, and overwhelmed by decisions you'll likely have felt something like this.
It is inevitable in my eyes. I think us humans make the mistake of thinking history happens because of the names. It doesn't.