A complaint about Tescos

Here in Ireland we effectively have just a handful of supermarkets to choose from -- Tescos, Dunnes, SuperValu, Lidl, Aldi and maybe a couple of other over-size corner shops like Centra and Spar.  Tescos have gone absolutely all-in with their clubcard over the last few years, but the price with a clubcard is the normal equivalent price in other supermarkets - and if you don't have a clubcard it will be much more expensive.  For all other supermarket cards, you effectively have to just download the app and start using it.  With Tescos, you need to provide a whole bunch of personalised information for them to be able to track you and sell your data to other people as well (I assume linked either via phone number or email).  I also have other gripes with Tescos, namely

• Their weighing scales at the automated checkouts are so strict they seem badly misconfigured.  On several occasions I have placed a single can of diet coke on there only it to tell me it's the wrong weight.
• The local Tescos in town is downstairs, out of range of mobile phone networks, and as such, you can't use the clubcard app.   The nearest Tescos near my house closes 8pm most evenings and doesn't really have much that my local SuperValu doesn't have.  And the SuperValu is nearer and similarly priced.  Also, why is the clubcard scan buried like 4 levels deep in the app - the design is awful.  Compared to the very simple SuperValu €5 off €35 which seems great for a loyalty card.
• The meal deal is fine if you're looking for calories.  If you're on a diet, the meal deal is not great, and you can get better food elsewhere for less than the meal deal. 
• Tescos has very little unique stuff that's worth a special visit and generally the quality is higher in either Dunnes or SuperValu, and either similar price (with clubcard) or more expensive in Tescos.  For me, the only things that I go into Tescos for are:  Tinned new potatoes (they only seem to have these in stock roughly 20% of the time anyway), Toffee cheddar (only available christmas time and wasn't available at all last year), Flat gammon steaks (which I have like once a year).  Puff pastry (for some reason my local SuperValu never seems to have any)

 The thing is, if Tescos is not your nearest supermarket and you don't currently have a clubcard for whatever reason, I can't see why people would start using Tescos instead.  Without a clubcard, everything is outrageously priced, like M&S prices for slightly better than Lidl quality.  So why sign up in the first place - just go to a different supermarket.