I don't even have to go that far... for ME Ianto was very much core of the show, but I think even for people who weren't huge fans, the show is irrevocably destroyed. And I'm pissed about that.

It's not "my" Torchwood they've killed, it's Torchwood in total. Unless they just make a completely different show and stick the same name on it (or franchise it, horribly) it's gone.