How did Ibn qudamah conclude prophetic expressions on takfir aren't literal?

Ibn qudamah opines the prophetic expressions of takfir aren't literal. Imām Ibn Qudhāmah رحمة الله عليه says, > The preceding hadiths (about the abandonment of salah being “kufr”) are expressions of severity and of the perpetrator’s similarity to kuffar, ***not literal expressions***. They resemble the following statements of the Prophet and other statements like them that are meant to serve as intense warnings: > “Reviling a Muslim is fusuq and killing him is kufr.” > “It is disbelief (kufr) in Allāh to deny one’s lineage, even subtly.” > ***“If someone tells his brother, ‘O kafir!’, then it will return to one of them.”*** > “Whoever says ‘We have had rain due to the movement of the stars’ is a disbeliever (kafir) in Allah and a believer in the stars.” > “Whoever swears an oath by other than Allah has committed shirk.” > “The wine-drinker is like an idol-worshiper.” https://al-maktaba.org/book/8463/779#p1 How did he arrive at this? Did he take the incident between Umar and abu hurayrah as a basis? https://www.islamweb.net/en/fatwa/366526/incident-between-%E2%80%98umar-and-abu-hurayrah-about-public-money