First off I think you are right with regard to two-dimensional politics and the way it's now amplified through social media. I've used the word "lefties" as a catch all without expanding on what I meant by the term.That just about encapsulates the problem with the two-dimensional view of politics that exists generally and particularly in many on this site.
The political and professional elitism that exists in this country is not the exclusive province of the political left, nor of the right, nor the centre. In this respect they are indistinguishable, in spite of their individual politics. It's a power and entitlement thing that transcends political standpoints.
That's my fault.
I came across a comment on the Guido Fawkes website (don't shoot the messenger or the source) which I thought was a good comment. I copied it to 'notepad' but forgot to save it, so went back through the articles to find that particular comment and the link to the piece I'd previously read having read your comment.
Here's the original comment I read:
There's an argument that the Middle Class is really two middle classes - the Yeomanry and the Clerisy
(The Two Middle Classes - Quillette ):
"First there is the yeomanry or the traditional middle class, which consists of small business owners, minor landowners, craftspeople, and artisans, or what we would define historically as the bourgeoisie, or the old French Third Estate, deeply embedded in the private economy. The other middle class, now in ascendency, is the clerisy, a group that makes its living largely in quasi-public institutions, notably universities, media, the non-profit world, and the upper bureaucracy."
If you squint a bit you can portray much of modern politics and life as a struggle between the Yeomanry and the Clerisy. The debate about neo-liberalism/globalism and the local, the debate about Big Government/Small Government all rest on this difference. It's 'Middle Class' civil war.
Labour are now run by and represent the Clerisy. The Conservatives are now run by the Clerisy too, but pay at least some attention to the Yeomanry. The Working Class don't figure in the debate.
Politicians across the Western world like to speak fondly of the “middle class” as if it is one large constituency with common interests and aspirations. But, as Karl Marx observed, the middle class has always been divided by sources of wealth and worldview. Today, it is split into two distinct...
I think it's well worth the brief time to read and I'm sure it will ring true to many a reader. Whilst I agree with your first point regarding two-dimensional politics and how social media polarises such, often with catch-all phrases such as 'lefties', I think the piece quoted nails it with regard to that term as I see it.