Consider this:
The government passes a law that mandates every citizen must spend X amount of time on a work farm. I actually know a lady this happened to. She's my age, and she grew up in China. Enough said. I think you know what she had to do; part of that cultural revolution in China. (I wonder if they still force teenagers to go to work camps in China.)
No, no,no, we might say. You can't FORCE someone to work for the benefit of another. That's slavery. And I don't think anyone would disagree.
Okay, the forced labor people might say; we won't make you work for a full year, we'll only make you work for four months of the year, so the remaining 8 months that person can work for her/himself.
But that's STILL four months of slavery, one might rebut.
Okay, you go ahead and work your regular job, the forced labor people might say, and you go ahead and get paid for the full 12 months of your work. But pay us 30 percent of what you earn.
Am I the idiot for comparing forced taxation on income to forcing someone to labor? Or are the slaves the idiots for not recognizing what they are?
The GDP in the USA is around 15 Trillion dollars per year. That means there's 15 Trillion dollars of spending, investing, consuming, etc.
If the government needs 3 Trillion dollars in revenue, for example, which is about what they collect in income taxes, it would be 20 percent of the GDP. Whether the dollars are taxed on the earning end or the spending end, it doesn't mean a decrease in revenue collected or a decrease in the GDP.
Contrary to the stupid notions advanced around here, "rich people" do not stuff money into mattresses. They spend, spend, spend. Find a way to exempt lower income people from being subjected to a consumption tax on the staples of life, and everyone would get by just fine.
And we wouldn't have the immoral practice of the government taking away the fruits of a person's labor.