Whoa, that was philosophical poetry at it's best.
CD is not the real world.
Things will always change. Growth can only happen insofar as there is demand.
Sometimes people get excited about a new building because they were working in the old one - with no air conditioning, lousy plumbing, etc., etc. Innovation and rebuilding can be a very good thing.
There are enough historians who protect our historical buildings and sites to take care of my worries on that front.
Just remember that every generation has pined for the "good old days."
Now for my own philosophical poetry: Nothing is constant except change.