The BBC reported recently that the top 30% of UK taxpayers (about 15% of the population) are net contributors, everyone else gets more out of the system than they put in.
Weirdly the answer is always "make those who contribute the most contribute more" and not "make some of the rest pull their weight".
Weirdly the answer is always "make those who contribute the most contribute more" and not "make some of the rest pull their weight".