Other european countries seem to manage to build in historic centres of their cities in a manner that will last and retain the original character of the place.
I was in Poznan recently , and the main square is really nice - far better than any part of cardiff to be honest from an architectural point of view, and none of it is original
Market-Square-Poznan-Poland-From-Wydarzenia-Naszemiasto-Poznan-Why-Live-in.jpg
A lot of the Victorian and especially Edwardian era properties we have aren't actually anything special - it just seems that way because we seem incapable of building anything that isn't completely shit these days. Tiny rooms with paper thin walls and no architectural merit whatsoever.
I'd be up for large swathes of Cardiff being knocked down and rebuilt if we had some kind of quality control on what was put there to replace it, unfortunately that isn't likely to happen so we are better off keeping them.