Another big party of the problem is that the I.R.S. and govt, use and force banks and financial institutions into this Nazi reporting. Report, report, report — even bank suspicions.
This is NOT in anyway a bank’s job, but they willing do it.
They have to do it - unfortunately the IRS and federal prosecutors can run amok and seize money that’s technically “illegal” even though the intent isn’t to fund organized crime or other criminal activity.
Civil forfeiture is increasingly directed at people who are not criminals but who simply run afoul of federal reporting rules.
Don’t keep your money in a bank.