fund expenses from income, not taxes

My challenge to the govt is to cap the tax rates at the current level, stop all the formula of profit first on essential services and finance its growing expenses from investment income.

We have more than a hundred billions in GIC and Temasek each. And it was claimed that GIC's profit is 8% while Temasek is 18%. These combined will give $26 billion annually. If they can grow on these two mammoth