It is a core, historically provable economic principle that you cannot tax your way to prosperity. The Institute for Fiscal Studies calculates that a £25bn gap will need to be plugged in order to fulfil Labour’s ambitious and generous election promise splurge. The government has promised there will be no return to austerity, as well as assurances there will be lower borrowing, spending and debt. The Labour manifesto already included £9bn of tax rises, but £16bn will have to come from somewhere else if Reverends Starmer and his Chancellor Reeves are to carry out their promises to the electorate…