A fairer ask would be that they no longer support ANY political party including yours.
A man was urinating in the Masjid e Nabvi. The Companions were shocked and rushed to stop him. The Prophet peace be upon him said to let him complete it. When he completed, he was called and told that it was not right to urinate in the mosque.
Sometimes if you are doing something wrong, it isn't right to stop it outrightly. It might be harmful.
Deen ki samajh bari cheez hai.