My point wasn't that I necessarily have a different view on what scientific discourse is; my point was that someone who is less discerning might see a discussion of one of the views you listed and see valid scientific discourse.

The issue is not that scientists, or discerning non-scientists, will take those views seriously, it's that others might (or will, or do). Hence the issue is not with defining scientific discourse, it's with educating a population to be able to apply that definition (or formulate their own functional individual ones).