Always make we wonder, how would I feel if one day I woke to the fact that aliens, orders of magnitude more advanced, were protecting Earth from their influence. I can’t internalize the difference in a stone age tribe and my life now. Logically, yes. Emotionally, no even close.

For those saying we shouldn’t bother, I’d counter that we want to know how they’re doing. If the population drops steeply, that’s a cause for concern. Maybe the modern world we’re protecting them from slipped in.