Admit it. Banks are a branch of the government. They are mandated to monitor accounts and to report regularly to the government. Banks are doing the work of the government and have no choice in the matter.
One problem with this tactic is that when you live in a “sanctuary state” everything is done to enable non-bank transactions (to accommodate the illegals). A few years back NJ passed a law requiring businesses to accept cash - while others were predicting the coming cashless society. A growing number of replacement Americans are paid for under-the-table work with cash, and they use it to pay rents in illegal/undeclared apartments (built without permits or the corresponding increase in property taxes). Much of the older housing stock was designed for large single families, and are now modified into two- or even three-family houses (basement apartments are ideal for single young men). This issue came up after Hurricane Sandy (and subsequent flooding events) because homeowners’ policies in many didn’t cover basements - and tenants didn’t have their own insurance in the illegal, undeclared apartments.
Areas that were totally built up with this old housing stock have both horrible parking problems and increased school enrollment now (despite no new housing being built); as older Americans die and younger Americans flee because of the costs (or the reduced standard of living if they stay), the replacements will pack more people into the same space, and the grown anchor babies (as citizens) can get licenses and cars upon reaching 17.