What are the major arguments put forward by pro slavery advocates

Pro-Slavery Advocates make arguments to represent slavery because it is benefitting.

Explanation:

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others