Generally speaking, the complaints tend to be tribal oriented. I wouldn't be surprised if tribal-type attitudes are involved in the Guardian poll (eg a sample person might think tax loopholes as themselves sneaking in less taxes, but might think of benefit loopholes as others stealing money that comes out of their pocket.)

The thing is that, though, I feel that a lot of these people actually do care about the "billions lost to the rich" too. With this recent round of populism, there indeed has been a strong "anti-elite" sentiment. Unfortunately, too often, the "anti-elitism" is masked in the same sort of tribalism that typically fuels a lot of anti-benefit outrage, so it's not necessarily focused (MHO) on the right places that it should be. But it's there.

Also quite apart from fraud there are peversely generous incentives for people not to work, and thus we end up with the spectacle of multiple generations having never worked, and having no intention to do so.

Multiple generations never having worked: very rare, this is a common piece of anti-benefit propaganda that's rarely rooted in fact. https://www.jrf.org.uk/report/are-cultures-worklessness-pass...

There is no test for having worked your whole life needed to get an old age pension. Unemployment benefit claimants get a National Insurance stamp.

Isn't there? I think that you need to have shown at least 10 years of national insurance contributions to get the pension: https://www.gov.uk/new-state-pension/your-national-insurance...

Granted, 10 years is not "your whole life", but there is a test.

You may get National Insurance credits if you can’t work - for example because of illness or disability, or if you’re a carer or you’re unemployed.

No there are not, and claiming such shows how ignorant you are of the current benefit system.

Name one situation where someone is better off on benefits.