I'd advise you to objectively look at the Laffer criticisms if you are going to use it as a premise.
You're right, personal tax is too high (especially in conjunction with the inflation of basic necessities) and as we discussed the other week, we both believe government debt servicing is about to go ballistic too.
What isn't right ? Let's have a look at the PM. His declared worth with Mrs is C650mil. Let's say his is around 220mil. That will generate at least, at 5pc, 11mil and he chose to realise and pay tax on 2.2mil, leaving C8.8 mil of reinvestment asset acquisition, or we can say the equivalent of thirty average UK houses, per year. Passive income. His income tax isn't an issue, nor would an extra 5pc on CGT be likely to damage his lifestyle either. This is why asset prices are increasing rapidly. One thing we could do to solve the problem if we're not redistributing wealth via taxation (Labour and Con's are not) is to remove necessities from the scope of financial speculation, as things that are not to be profited from at the expense of the poor, or asset-less . Housing, utilities, NHS, food, etc., but we won't, because controlling the prices of these are key levers in a capital based planned economy.