Here is an effective statement:
As of today we are instructing all faithful Catholics to no longer submit to the authority of the state by changing their w-4 forms to EXEMPT and refusing to file and pay income taxes as a form of peaceful and non violent resistant to the lawless Federal Government.
We further urge our fellow bible believing Christian brothers to do the same until the state reverses the actions of the Supreme Court.
There are 70 Million Catholics in America and over 28 million attend weekly services. If they would withhold their income taxes it wouldn’t be long until the government took notice and they can’t kill us all.
Sadly, "They Can"
Do you see some connection between withholding your taxes and the Supreme Court being incorrect? It is incorrect and risky to break the law by not paying your taxes. You can be arrested and go to jail for doing it.
You would be more effective to call for a national boycott until the politicians have to correct what the court has done. Politicians can remove marriage from the topics the court can rule on. That would be a Constitutional and legal solution.