regarding sanctuay cities

The courts have consistently upheld the concept that setting and enforcing immigration law is the uncontested right of the federal government. There is NO legal argument which can be used to claim that states, counties, cities or any other local municipality has any power to override federal laws concerning immigration. That being said, it is clearly necessary for the federal lawmakers to put some enforcement policies in place to install punishment for any 'local' municipality that does not comply with federal immigration laws. Clearly, the unlawful and anarchist activities of 'sanctuary cities' must be curbed by enacting new federal laws to impose consequences on lawbreakers. The house and senate MUST act, and I would like to suggest that they look at the new 'sanctuary city' law enacted in Texas (HB12) as an example for federal penalties needed. In addition to defining defiance of federal immigration laws as felonies, it seems to me that there should also be specific laws enabling individuals to sue ‘local municipalities’ in civil court for real and punitive damages resulting from their non-compliance with federal immigration laws. Lastly, there have been several ‘sanctuary city’ officials who are claiming that ICE detainment ‘requests’ can be ignored because they are simply requests. If that is the case, then a new ‘legal instrument’, call it a detainment demand, must be instituted to make the compliance with federal law unarguable.