Madkhalis say that a leader can allow all kinds of haram stuff, but it doesnt make them kafir because they have to say its allowed with their tongue (speech). This is the aqeedah of the Jahmiyya, who say actions dont affect eeman.
These madkhalis claim that anyone who says the leader is a kafir for allowing alcohol to be allowed in the country without saying its halal with his tongue, than he is a "khariji"
This audio clip shows Uthaymeen calling those that allow Alcohol to be sold kafirs, so they are now forced to call him a Khariji if they are consistent.
Speaker: Anwar al-Awlaki
The offer made by Quraysh would have a lot of Maslaha for the Muslims because they were weak, being tortured & prisoned, the Prophet (ﷺ) denied their offer and Allah sent down surah Kafiroon which makes clear that a Muslim should never have anything to do with kuffars Religion!
Hadith in Question: https://sunnah.com/abudawud/24/47
Narrated Abdullah ibn Umar:
I heard the Messenger of Allah, (ﷺ) say: When you enter into the inah transaction, hold the tails of oxen, are pleased with agriculture, and give up conducting jihad (struggle in the way of Allah). Allah will make disgrace prevail over you, and will not withdraw it until you return to your original religion.