Not sure how you arrived at that conclusion. As I've explained to you before, I don't have to believe that unicorns exist in order to believe that they would be a mamallian species closely related to horses if they did, in fact, exist.
Circular reasoning.
I don't see how, but perhaps you explain further down, so let's see...
Unicorns are imagined as a horse with a horn. If the majority of people imagined unicorns as a lizard with a horn then you couldn't argue that they were mammals since you are relying solely on your opinion and not on any facts.
I can certainly agree that if people thought unicorns looked like lizards with horns, I certainly wouldn't think they were mammals closely related to horses, assuming they existed. I really don't see your point though.
You have posted on more than one occasion about how some virologists have claimed viruses aren't subject to Koch's postulates and argued that this is somehow proof that viruses don't exist.
I challenge you to find me -ever- saying that there is proof that biological viruses exist. I'm pretty sure I have claimed that no virus has ever satisfied Koch's postulates as far as I know. It's a rather different claim.
As I've pointed out numerous times, the authors of the statement referenced in the opening post have set up a method wherein the existence of biological viruses could be tested for. To date, I don't believe that any virologists have tried to test for viruses. This may be because of the failures that virologists have had in the past to try to provide evidence that viruses actually exist, which is something that authors of the statement also bring up.
And I have pointed out numerous times, the author's test is pseudo-science.
Unsubstantiated assertion.