I'm not interested in what the UK looks like from a flippin airplane! What matters is the actual experience of real people on the ground. I'm in rural Essex and it's now so crowded I could scream. My local woods have been hacked down to build a new estate, and a second giant estate is going up at the other end of the village that, frankly, is more like a new town. The traffic is so awful I barely go out. And in the summer, instead of birdsong all you can hear is the screeching and exploding of boy racer cars.
The left always treat people like statistics. Statistically you could fit the world's entire population on the Isle of Wight, if we all stood shoulder to shoulder and no one breathed. But would you want to live on the Isle of Wight? No doubt some left-wing lunatics would, because they will put up with ANYTHING rather than control immigration. And that's the key. Labour are effectively saying "look, we're not going to clamp down on immigration. You know it, and we know it. Immigration will increase under a centre-left government, and you're just going to have to get used to it. The British countryside, especially in the midlands and the south, has got to go."
Last year, net migration was 600,000. That's the population of Manchester. But the migration crisis hasn't even started yet. Africa has the highest birth rate in the world. In fact, their birth rate is so high the African population is going to double by 2050. On top of that, lifespan is increasing, which means people aren't dying and making room. More and more people, more and more houses, more and more noise, less and less space...that's the future.
A lot of left-wing people secretly love to imagine lives being ruined by Labour's building plans. They pose as morally superior, but they are every bit as hate-filled as the right. Still, their hatred is directed towards middle-class NIMBYs, so that's OK.