There is a an enormous difference between allowing non-whites to sit at the lunch counter in Selma, AL and forcing a Catholic OB-GYN to perform abortions or be sued. Contrary to your apparent belief structure, the federal government is not all powerful when it comes to ramming policy down the state's throats.

The courts have consistently upheld this tenant when it does not conflict with constitutional law. The way the government gets around it is by bribing the states with federal money for things like highways, schools, parks etc. But when a line is drawn that is too much to swallow, the states can and do fight and win.

It will be an interesting legal case to watch if it comes to pass.