Unfortunately, some Muslims still believe that the Islam spread by sword not due to the reality and morals of it, I had studied a little bit religions like Buddhism Hinduism and Shintoism with all respect to them but they lack the reality that we find in Islam.
I just wanted to address this nonsense "spread by force" thing
If you want to know about force conversions learn about Charlemagnes force conversions of barbarians to christianity ... or the spanish force conversions of spain, the Americas and the Philippines ... or the force conversion of the baltic region to christianity ...