All of this goes away with CBDCs. The government can track everything. The government can take away everything instantly. The government can decide I'm not allowed to spend my money on certain things they don't agree with.
Trying to save up for the down payment on a house or a new car? Nope, that tax return we gave you expires in 3 months to force you to stimulate the economy. Bought a gun that was completely legal at the time, but the government has since decided you shouldn't have it? We have a record of you buying it, so we'll send the ATF to raid your house for it. Said something critical of the current president on social media? We've frozen all your money until we reeducate you.
It's not a matter of if this will be abused, it's a matter of when and how badly.