What are you talking about? Ever seen a map of the Umayyad Caliphate that was the 4th largest empire in human history and by far the largest Caliphate in history? Or the Rashidun or Abbasid caliphates? It stretched from Southern France to Xinjiang and covered half of modern-day Turkey and much of Central Asia.
BTW he was talking about your leadership, the same leadership who the day previously made similar comments out of nowhere.
Let me repeat myself.
The ancestors of Saudi Arabians, including virtually every other Arabs, were a mixture of Christians (Arabs were the first Christians on the planet outside of a tiny Jewish following), followers of Judaism (the first non-Hebrew followers of Judaism were Arabs) and believers of various ancient pre-Abrahamic Semitic religions. For instance some of the oldest churches and church ruins have been found in modern-day KSA. Google "Jubail Church". A church from the 4th century. Several Christian "saints" originated from Arabia as well. In what is modern-day KSA there existed numerous Christian and Jewish pre-Islamic kingdoms as well.
A large part of the events in the Torah and Bible take place in Arabia.
Anyway what you refer to as paganism are those various ancient pre-Abrahamic Semitic religions that predate the 3 Abrahamic religions. Have in mind that Judaism, Christianity and Islam themselves are Semitic (Abrahamic) religions. They are native religions of ours.
They are obsessed about the almost 500 million Arabs so what do you honestly expect? Notice how most of them ignore the fact that the Iranian leadership were the first ones to make such kind of comments. They even went a step further and talked nonsense about how KSA deliberately killed pilgrims last year. Mind you it were their religious leader who did that who also happens to be the head of state. The Grand Mufti just replied to their statements. Anyway both such statements are childish.