This is the prologue to a video game. Below are the official subtitles in the NTSC-U release.
と言っても、これを信じている学者は、世界で数人しかいないんだが。
"However, there are only a few scholars in the world who believe this."その一人が先生ってわけですね?
Clair: "You must be one of those scholars then, professor."少数派どころか、学説扱いされていない。
Koji: "Actually, this idea is not even accepted as theory."
Running the last sentence through google translate without 少数派どころか、gives:
学説扱いされていない。- It is not treated as theory.