Again, the state being a piece of shit, doesn’t mean everyone who lives and operates in that country automatically supports every single decision of the state.
You know that Israel buys most of its weapons from the US, right? In other words, US actively supplies Israel with weapons knowing full well what Israel is using them for. Are you going to boycott all US companies too, now?
If you want to hurt a state, you should get your country to stop doing business with that state - that is, natural resources and weapons trading, - not go after civilians and civilian businesses, which aren’t responsible for the already made decisions, nor hold any power to overturn them. (Since countries that are known for aggressive behavior aren’t known for being particularly democratic).
How does burning a car improve anything? By what logic does not burning a car equal to “fucking over the next 15 generations”?
Misdirected rage, even if it’s initially for a good reason, doesn’t help anything. If there’s a house on fire, you pour water on that house, not one two streets over. You do the latter, you end up with two destroyed houses: one burned, the other flooded.