Not being popular is of no interest. As a country we put up with a level of crime, much of which is not reported.
In my opinion having people who are supposed to be here and not involved in crime are more important. Statistics and graphs can be manipulated to show what “facts” are needed.
IF the carrying of ID helps annoy/inconvenience people that don’t belong or are involved in crime bring it on. In reality as can be seen by this thread for all practical purposes those going about their lawful business require it.
I've just spent months proving who we are and what we do for my family businesses Spanish banker. As I have learned if we were to change bank there would be many more hurdles to get over.
Put another way, what have you got to hide if you don’t want ID.
There is a large supposition on your part that ID cards will reduce crime - except there is no evidence to support this. The UK has large numbers of CCTV cameras (as has already been commented on), both public and private - yet studies have consistently failed to demonstrate this has resulted in any reduction in crime rate. It therefore is unlikely that ID cards will confer any benefits, especially given that there is no obvious deterrent as with CCTV.
There is a false equivalence with
hiding and
privacy. Privacy has nothing at all to do with hiding: Most people close the door when going to the toilet - not to hide, everyone else can make a good guess as to what's going on, but simply because it's no one else's business. It's no one's business but your own when and where you choose to go down the street. None of my business, nor the police unless you are suspected of a crime (and besides, they not merely have better things to do with their time, but already have sufficient powers to detain you should they be in doubt as to your identity).
Lastly, you don't know what you might need to actually hide. Ethnic Tutsis were targeted in the Rwandan genocide
because their ethnicity was recorded on their ID cards. Whilst that may seem an extreme example, even something as apparently innocent as a name can be detrimental: you could quickly find yourself in trouble in large parts of India should you be unfortunate enough to have a Muslim sounding name, for instance....