I find that entirely believable. But do you really think that activists in the US do not face similar problems, at least, when their actions threaten genuine subversion of some end desired by the wealthy elite? In relative terms, I am not given to believe that Chile is a particularly oppressive place.
The you should see what we do to the Mapuche over here. Last week the Supreme Court confirmed a sentence of three years of _probation_ for a cop who killed a Mapuche activist. Their communities are violently raided with gunshots as a matter of business, international media is harassed out of the region and the national media doesn't cover squat.
