But it's only really upsetting for those that grew up used too the old model. The next generation won't care. As we didn't care that we grew up shopping in a different way to our grandparents.
Pretty much sums it up, it's a *things where better in my day/I don't like change" cloaked in an anti capitalist/what about xx group.
It is just a natural technological change and won't be put back in the box now, those harking back to how it used to be are no different to the type that is often mocked around things being better 'back in the day', it is luddite behaviour and the people generally complaining are becoming the the type of person they used to roll there eyes at.
Was at a big data conference the other week, and whilst obviously there is a capitalist streak to bringing in self service, if the uptake wasn't there initially it wouldn't have taken off, there has been an uptick in footfall because people wanting to pick up just a few bits didn't have to queue in the 5 items or less till, people realise it is a transaction and just want in and out, the OP's title of 'killing the shopping experience' is telling.
Most people understand the basic transactional experience of it, it's why the likes of Waitrose/M&S etc moved into the lunch market killing local sandwich shops, why the local corner shop is not as prevalent as they used to be, etc, etc rolling back through history. The anti capitalist streak people are trying to suggest is just that their preferred flavour of capitalism is changing to the market conditions.