A tax strike is safer if done individually, rather than under command from someone with a return address. US federation must collapse if its only mandate is to serve Israel/oligarchs with only gaslighting of people's interests.
But, shutdown, unfair project funding redistribution, military occupation, illegal busification of brown people, tariffs meant to make products expensive, not paying SNAP/health assistance, exposing your citizens to terrorism for baseless demonic warmongering policy are all breaches of "States rights" and centralized federation's obligations to members.
It is more democratic for jurisdictions to negotiate how much tribute they give to Federation, because without a balance of benefits returned for their contributions, fascist oligarchist oppression supported by parasitic populist haters clearly results. When politics are so divisive, divorce is better than fascism, or perceived fascism when other side gets power. A tax strike is first move towards secession, But tribute paid by cities/states for non aggression is a fairer tax system than what we have now. Pay for the programs you want either at the state level or through an association of states.