I think the author is half right.
No we should not be weak or defensive.
But we can be strong, forceful, not defensive and still do it in a civil manner that cuts their defense because we are not the flaming mad-men they are. If we do it rigt, the public will get it. We are not weak and defensive, but we are not like the Left.
How have you managed to survive this long?
That's as mindless as "that's not who we are..."