Uber willfully misunderstood tax law to their advantage. Were most other taxi companies charging VAT as tour operator even before Uber started? If so, you would be right that this a concern of unclear rules and arbitrary application of them...
But that's not the case
https://www.accountingweb.co.uk/any-answers/should-taxi-firm...
> Given government spending is out of control
UK spending is barely above average for industrialised countries. After a decade of austerity, British people are getting poorer and poorer.