so that the upper chamber stops being a reasonably impartial bunch of old guys who do what's right because its right
Read a few history books for cryin' out loud. There was (and to some extent, still is) nothing reasonable about the House of Lords. Back in the day many of the peers were hereditary ie only there because of their bloodline. At crucial points they interfered to try to block the democratically elected government - over welfare reform (back in Lloyd George's day) over Irish independence/Home Rule, and a zillion other things. Recently they even made noises about blocking gay marriage.
This is an institution with no mandate and no accountability to the electorate. It defies belief that someone could characterize their out of touch interference as some sort of positive influence.