I don't think anyone would disagree with paying more tax, the problem is having visibility as to where it all goes and what measured improvements will be achieved.
If I hand over my hard earned cash for a service to be performed I can see when its been competed, if its to the required standard and its transparent who's getting paid what amount. The problem with taxation is, its not transparent, many see little tangible benefit. Schools are getting worse, hospitals dont have enough money, infrastructure projects are being cancelled, the military is shrinking, pension ages are rising, not enough police, prison full, swathes of homeless people etc.
Yet people such as myself are absolutely caned for tax because Im an easy PAYE target on a good salary.
Its absolutely correct that we all need to pay more tax, but there needs to be a lot more accountability around how that tax is spent.