Whoa...

So... let me get *THIS* straight. Now you are changing the meaning

Dissension was unpatriotic.

But the quoted article said nothing about dissenting/opposing views being unpatriotic:
Drowning out opposing views is simply un-American


So we change that sentence to say:
Drowning out opposing views is simply unpatriotic.


DROWNING OUT OPPOSING VIEWS is unpatriotic!

So... explain your side again? Please, I'm a bit confused.