Not for lack of trying.

https://en.wikipedia.org/wiki/Assassination_attempts_on_Fide...

Like I said below, when the largest empire the world has ever seen makes it a policy to destroy any socialist leader (even the mildest of social democrats) that threaten their resources or hegemony, only the iron-fisted strongmen survive. What people cite as failures are a result of the intense external pressure which favors strongmen because democratic socialist movements get massacred.

What? Did they try to assassinate Olof Palme? Also why would only the dictators survive?

Northern European/Scandinavian countries got a pass for things that got Latin Americans slaughtered. I'll give you as many guesses as you need to figure out why.

Hint: resources or hegemony

| Also why would only the dictators survive?

Because they ruthlessly crush their political enemies and live in a state of constant paranoia?

It seems utterly weird that only dictators wouldn't let themselves be murdered.

I just explained why and it's still weird to you? You should ask yourself why so many democratically elected left-wing leaders find themselves murdered or exiled by the CIA.

https://en.wikipedia.org/wiki/United_States_involvement_in_r...