@hazardwarning I think the traditional (as of the last century, anyway) and best use of the House of Lords is as a deliberative body that can slow down legislation and force a second look. It's unpopular to say so, but there's value in an ostensibly undemocratic upper house that takes a longer view and that can say, "Hold on, wait just a minute here" and temper the worst impulses of the government. A completely democratic and equal upper house usually ends up just being a recipe for gridlock when it's controlled by a different party, as we have in the U.S. with the Senate.
If an unelected upper house can frustrate the plans of a sitting Prime Minister, that is not a bad thing, and means it's probably doing its job.