As salamu alaykum If one Muslim uses another person’s Islam against them in a court in the west - is this considered kufr? Example: Fatimah is telling the kaffir judge regarding Khalid: “Khalid prefers using an Islamic judge and he labels non Muslim courts as ‘kaffir’” Has Fatimah committed kufr

Ustadh AbdulAziz al-Haqqan
No it does not lead someone outside the fold of Islam, but they should seek an Islamic court if that is possible and they should be reminded to fear Allah and seek His rulings.