Good? Giving the tiniest little shit about nature and not wiping out the entire biosphere to build super low density housing over everything is the least we can do.
Not good. There is a spectrum of choices between not having enough reservoirs and power generation on one end and paving over the entire country on the other. I would trade having bats confused at night in order to have more housing within 2 miles of a major city.
Why not have more housing in the city? There's lots of space in the UK town I come from that is very poorly utilized. As for power generation, solar panels can coexist with quite a lot of wildlife.
I might agree, if high-density housing in England wasn't coupled with laughable rights for the owners of flats/apartments. The current leasehold system needs to be replaced, but I doubt anything will change even with the new government.