When people in ancient text revered to people as Lions or Eagles. That doesn't meant that those people were literal lions or eagles.
Same with grey lizard, bread of vipers, snakes, etc.It is not meant literally that they are alien grey lizards. The text tried to describe a mindset.What is an offense to actual beautiful lizards, but that is not the point.
The point is that anyone who claim without doubt that literal meaning was meant is not only retard, but also a Marxist Subvert.