As other commenters have said, we can't take our own viewpoint as an example of what kinds of civilizations
survive because our technological age is so young.
But IMO Dark Forest is bunk anyway, because it assumes that projecting power over interstellar distances is easier than defending yourself. That's not true within terrestrial history ... even though the arrival of colonists was massively disruptive to populations in (for example) the Americas, they couldn't have outright destroyed them. To survive, they had to trade and mingle with their neighbors, ultimately changing both cultures.
The sequels to The Three Body Problem kind of discuss this, and extend the dark forest idea to consider that any population that splits off from you is now a dark forest alien. I find that crazy xenophobic and ultimately an impractical black and white view of self vs other. On Earth, successful civilizations have been capable of trade and cultural exchange in addition to force.