If taxation doesn’t fund government spending why the constant cries to tax the rich more, tax people’s homes…
First of all, the incontrovertible fact is that governments with a sovereign currency, of which they are the sole issuers, do not need to tax before they can spend because they can create the money that they spend.
They cannot go on creating money ad lib because that would cause rampant inflation, extreme examples being the Wiemar Republic and Zimbabwe. So they need to take back at least sufficient of the money they have created to make 'space' for their continual cycle of money creation and spending. The mechanism for that is taxation.
From this point there are two ways of looking at taxation. MMT theory says that it just destroys the created money. Or, you can say that the reclaimed money is revenue which will 'balance' (though not in a accounting sense) the initial government outlay. 'It pays off the overdraft' if you like...
But either way you care to look at it, the money creation comes first.
Of course, the whole amount issued never entirely comes back immediately via taxation because people save some of their money. If they don't spend it, they aren't taxed on it. But if they 'save' by investing in government bonds, or in government savings vehicles, such as Premium bonds, savings bonds or National Savings accounts their money returns to the government via these instruments. Government pays interest on these 'savings', so it's not a cost free method of raising revenue, but the sum of the interest paid is only a small percentage (until lately, less than 5%) of the money that these savings make available to the government.
Spending comes before taxation and the more that government spends the more it will get back via taxation. It is noticeable that when a government cuts back on its spending it 'borrows more.
Incentivise people to work, to attain their goals, to improve their lifestyles and have money in the bank oops then the state will tax you more for being successful.
It would require quite an essay to address these points, but I will point out that a great many 'poor' people work very hard, sometimes with more than one low paid job, and see no return at all for their hard work. Not everyone can be an entrepreneur...