I have written about group selection before.
However, researchers like Michael Woodley, Ed Dutton, Bruce Charlton have written about the consequences of group selection and their benefits. For example, Charlton and Dutton in "The Genius Famine" argue that the genius is an example of group selection. Geniuses are anti-social figures whose inventions benefit the group, but not themselves. Geniuses typically do not reproduce.
This is Bayesian evidence for the existence of group selection. Perhaps the logical argument against group selection is flawed.