One of the main problems with using group selection arguments to explain the evolution of altruism is that:

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The argument of group selection suggests that altruistic behavior can evolve if it benefits a group or community, even at the expense of the individual. However, selfish individuals should be able to outcompete altruists within a group, making it challenging for altruistic traits to spread. Therefore, group selection is not a valid explanation for the evolution of altruism. Kin selection, on the other hand, which explains altruistic behavior towards close relatives, is widely accepted as a valid explanation.

One of the Main Problems with Using Group Selection Arguments