Answered here (just so you don't miss it).

What is irrational is considering a positive outcome for something you identify with (your clone) that has no known negative effects on anything you care about to be a net bad thing.

Breaking my own rule of not fighting the hypothetical, it surely would. That better-off clone could well replace me in many roles, and generally take my little niche in my environment. But we should assume there are no known negative effects, in which case you'd be right, of course. So now that we've established that the is-state of me is irrational (as opposed to the ought-state), quo vadis? :)