The Spire's quite democratic in a way though cause if you don't like it, well you don't notice it! It's bizarrely very easy to avoid, to forget it's even there. unlike other major controversial schemes that scream and shout at you.
I think that's the case with most people who like it too though, it's scarily easy to pass it by, or not look up - not least cause you don't want to look like a silly tourist
On the point of opinion polls, I think if one was held proposing the rebuilding the Pillar with someone else perched up there, it would get widespread public support.