"Although I may agree with some of it's premises, this article highlights the danger we face of falling into enforced collectivism in which there is one right and wrong, one point of view, shared by all."
Agreeing on a shared reality isn't "enforced collectivism", it's a by-product of the fact that we all live in the same world and are broadly the same. Believing in a Christian God is enforced by churches and parents and much more prevalent on the right, that seems much more like 'enforced collectivism' to me.
In addition, have you ever spoken to two or more liberals on the same topic at the same time? Good luck getting them to agree.
"The article is sloppy in its identifications such as saying that "a country" conflates self-absorption with independence. That is simply false. The attitude the author collectively attributes to "a country" is not even shared by a majority, let alone the entirety of the country."
Have you not heard of synecdoche? It's a figure of speech where (temporarily) the whole stands in for the part that is the current topic. Clearly, Jessica doesn't believe that the whole country "conflates self-absorption with independence" because she's in that country and she doesn't do that. And, whilst you're right that the point of view is not shared by the majority, it was voted for by 75 million people, a not insignificant minority.
"I also find it offensive that the author attacks McCain for supporting a policy the author shares but for not doing so with the timing approved of by the author and for reasons asserted by the author."
So, you are now dictating that the author (Jessica) is wrong to believe that hypocrisy is wrong? Do you understand what irony is?
"Collectivism is a very scary thing that deprives us of all individuality."
You misunderstand the difference between dependence and inter-dependence.
"We hope for a new era of co-operation that our founders intended when they designed our Constitution. This article sets a wrong tone for that."
Your misunderstanding of this article illustrates that there's a long way to go to get to the inter-dependence that underpins the constitution... or that would if it wasn't also cool with slavery and other forms of subjugation.