But i agree the unelected nature of it is undemocratic. It should be replaced with a second elected house that can perform the same role of putting a check on the HOC.
Full HOL reform would be a good way to start the move towards a proportional representation electoral system in the UK. Make the reformed second chamber a PR elected house and give them a slightly longer/fixed period between elections to shield them from the chaos of a general election and party politics.