Force is used. Men with guns, tasers, batons, and handcuffs show up. If you continue to refuse to comply, they use their strength in numbers and the tools they brought until you do comply or you are dead. We are usually compliant, or at least more compliant than others, and we don't normally think about the logical end of things, but it is there.
It is something to think about whenever you advocate for a new law.
"Government is like fire, a dangerous servant and a fearful master."