>Not sure whether it's interesting to continue unless we can at least agree that the State has an obligation to protect citizens from individuals who are only interested in themselves;

In a free society, individuals have every right to be interested only in themselves so long as their actions do not violate the rights of others.

>and that the Bill of Rights does not establish the right to assert personal rights at the expense of everybody else.

The Bill of Rights sets limits upon the State, not individuals. The Constitution allows the State to enforce laws enacted by the citizenry through a specified legislative and judicial process, however, those laws must not violate the Constitutionally established restrictions upon State authority.

Your assertion that a red light runner should have their private property confiscated is unconstitutional on 4th Amendment grounds. Namely because the seizure is unreasonable. I contend that the same seizure is unconstitutional as applied to the banks, especially given the pressure exerted by the State to force compliance.

I continue to ask without a response, where's the line?
The answer, obviously is: The Constitution is the line.