In the 80's(?) I read a story in an secondhand anthology that may be called "There Stands a Statue." The plot I remember is something like this.
In the park there stands a statue; like many others it is a man on a pedestal and on the pedestal is an inscription. The inscription consist of three dates. They are not the dates of his birth or death or any remarkable achievement. They are the dates on which his government sentenced him to death or life imprisonment for treason against the human species.
The bulk of the 5-10 page story tells how:
Aliens arrive and Earth panics and rushes desperately to get them before they get us. Protagonist says, Hey guys, maybe they aren't hostile; maybe we should talk first before we start shooting. The government tries, convicts, and imprisons the pacifist fool. It turns out the aliens are peaceful; peace, love, technology transfer, and prosperity ensue. Everybody is happy and the government pardons the protagonist.
Protagonist notices that humans are becoming increasingly dependent on, and vulnerable to the aliens, who on further investigation seem to be setting up a bloodless subjugation of humanity. The government tries, convicts, and imprisons the xenophobic, hate-mongering enemy of peace and prosperity. But some people were listening and asking, What if he's right? How do we prepare? When the aliens spring their trap, a long bloody, desperate struggle ensues during which protagonist is again pardoned and brought into government.
Victory is in sight; another 6-12 months and we'll exterminate the monsters. Protagonist opens his fat mouth again. This time he says: Extinction is a tragedy, genocide is a crime. We know how they think. We have proven our ability to punish a double-cross. They have knowledge we want. We are the victors; let us offer a generous peace and establish a more realistic, equal and mutually beneficial relationship. Once again the government tries, convicts and imprisons this crazy, alien-loving traitor to his species. This time he dies in prison before good sense prevails and his strategy is implemented.
Thrice imprisoned and thrice a hero. Pardoning a dead man doesn't seem like an adequate response, so they proclaim him a hero and ... in the center of the city there is a park, and in the center of the park there stands a statue.
That's the way I remember it. I would love to read it again.