The ironic ending is on purpose

What a great film and a fuck-up ending ! There is no different story in the future, which is from nowhere to start. This is what I thought when the final line coming. I don't understand but have been used to this hopeful Hollywood but making no sense ending. You don't know how much pain the Pyhcho has suffered both from body and spirit, but you can pray for a new start? for whom? the fucking peaceful life for the town ? where will he start from? what will be the future for the men cuttin off his dick? Sarah will the next heart broken and desperate housewife in the Revolutionary Road. Bred ? Bred is totally hopeless.