Pointing out how Islam's approach to God is regressive / stagnant, and how Christianity's approach is more effective / practical is what would convert them.
It seems to me that well articulated points would make total minced meat out of Islam, chiefly the difference of the quality of life in the Muslim World vs. The West:
https://en.wikipedia.org/wiki/List_of_countries_by_Human_Development_Index https://en.wikipedia.org/wiki/Freedom_in_the_World#World https://en.wikipedia.org/wiki/List_of_countries_by_life_expectancy#World_Bank_Group_(2020) https://youtu.be/C7vvPXz-Qes?t=86 