While religion in ancient Greece had great debate, anything that happened during and after the fall of the Roman empire had effectively zero critical thought to

While religion in ancient Greece had great debate, anything that happened during and after the fall of the Roman empire had effectively zero critical thought to it for the next several hundred years. Christianity was ultimately thrust on western populations by force. It stayed there for generations until it became so engrained in European culture (and American culture, as a consequence) that nobody questioned it anymore until modern day. It is a coincidence of history that Greece happened to have a a Christian faction that was good at converting people right around the same time that that Roman empire was collapsing. Many other religions that tried to similarly gain traction were met with destruction before they hit critical mass, so you must be careful to acknowledge some survival bias here for your religion of choice. Christians, by pure chance, got the timing right.