What a pointless waste of time wanting ITV1+1. When I was a kid you didn't have Westward + 1, Southern + 1, HTV + 1, ATV + 1, Grampian + 1 etc, so why bother having ITV1 + 1 now? If Coronation Street happens to be on ITV1 at the same time as EastEnders on BBC1, then tough luck, get a video recorder of some sort (DVD/HDD recorder, Freeview+, Sky+ etc) and record Coronation Street so you can watch it after EastEnders.
When you were a kid? YOU'RE STILL A KID!
Regardless of that, there's a reason you didn't have all those +1 channels - because affordable technology to facilitate and deliver them hadn't been invented yet.
The only problem I have with +1 channels is when they are on limited capacity platforms such as Freeview, taking up a MUX spot that could be used by another channel.
On Virgin/Sky etc; they are a very useful alternative to programming a HDD recorder (many of which are still prohibitively expensive and overly complicated for some people). I'm sure you've been running late once coming back from one of your "adult kid" get-togethers, missed your favourite programme, and been grateful that said channel has a +1 to cater for it (although Cbeebies+1 hasn't launched yet; perchance this is the source of your bitterness?)
And frankly, shouting "tough luck" at people because they choose not to get the latest and greatest in televisual gadgetry stinks of high-handedness and bigotry in the first order, and you should be ashamed of yourself, you pathetic little man.