[AnimalMuppet]

Most people can't construct a valid argument unless they have taken philosophy classes in college? That sounds like your argument is rather shoddy.

[brewdad]

What is your argument then? Saying nuh-uh you're wrong isn't a valid argument.

[AnimalMuppet]

Saying "that argument is faulty" is a valid argument about the other argument. It is not a valid argument about the original topic.

I can say that the argument is invalid without even taking a position on the original topic. I can do so with extra appreciation of the irony when the original claim was "those people can't construct a valid argument".