>>6186447This is based on absurdism, which is based on the contradiction between a meaningless universe and humanity's pursuit of a meaning.
It was never meant to be about actual suicide though, rather, philosophical suicide, which usually means resorting to a belief in god rather than accepting the absurdity of the contradiction. Actual suicide is also touched upon though, in that it could be seen as a solution.
Wikipedia has a few good pages on this if you want more, just search absurdism.