And that's where the content of the vandalism comes in. "Eff you" or even "Elon sucks" is one thing. A Nazi symbol? That's where the threat aspect comes in. The left has spent eight years now telling us they are ready to fight Nazis. And proclaiming that anything you do to a Nazi is justified. Now, would that dissuade me, or maybe you? Most likely not. But mothers and fathers who haul kids around, or even just themselves? When making a choice to buy, knowing that you might be singled out, that's a factor. Keeping in mind the definition of terrorism.
Terrorism involves the use or threat of violence to create fear and coerce or intimidate a government or civilian population in order to achieve political, religious, or ideological goals.
These people are for sure trying to instill fear and coerce people away from a product for the sole purpose of making political change. Because they know that hurting Tesla sales and stock prices are a lever to use against Musk.