You can refuse a duel. If the other person persists, it's straight murder. The penalty for refusing a duel is loss of "honor". Which you can't really lose if your opponent is challenging you to a fucking duel in 2024.
It’s almost guaranteed that they’ll be calling duels only against the democrats we in STL or KC send to the state government. They probably won’t even bother trying to get witnesses to attest a duel was agreed by both sides, they’ll just murder Cori Bush or others for existing and claim a duel was called, then get away with it.