That $175T wealth figure is measured at the peak of everything bubble in the US. Real estate, stock market, bonds - everything is at the all time highs, after debt and low yields fueled decade. And yet still, according to the article government would have to confiscate 10% of all wealth in the America to pay the debt.
And that's just the official debt. What about unfounded liabilities, which are many, many times higher? https://www.forbes.com/sites/johnmauldin/2017/10/10/your-pen...
So basically optimists here say, that to pay the debt the government will need confiscate more than a half of all the total wealth in US, at its peak, without causing economic slowdown and without causing inflation (and thus yields) to spike. And that assuming the government doesn't accrue any new debt as it is running a balanced budget. And considering that fiscal spending is an important part of keeping this struggling economy going ... that balanced budget would have to come from the tax... like you would never seen before (basically double?). And again... all these taxation without crippling the economy.
And all that inflation and taxation, without people noticing and trying to counteract to preserve their wealth (tax avoidance, running into PM, crypto, foreign assets, whatever.)
Yeah... whatever keeps you sleep well at night. :D