I don't like your first argument because it won't always be true. It seems more an more likely that most of those low-end jobs will be automated away at some po

I don't like your first argument because it won't always be true. It seems more an more likely that most of those low-end jobs will be automated away at some point during this century. The argument for the worth of every human being needs to be based on something besides needing to have them around for your convenience. Fortunately, I think there are plenty of arguments that meet that requirement.