It's the recent "Zeitgiest" conspiracy theory "documentaries" that float around on the internet. They just note similarities with the New Testament and old Egyp

It's the recent "Zeitgiest" conspiracy theory "documentaries" that float around on the internet. They just note similarities with the New Testament and old Egypto-Greco-Roman myths/cultic practices and say "See? This is where it came from". You're right; it's not based on and scholarship or methodology. It's just simple associational reasoning. "These two things are similar, so therefore they are the same".