“To the many accomplishments for which the late Margaret Thatcher is now rightly being celebrated, let us add one that is usually less remarked but no less remarkable: she inaugurated the era of modern political polarization.”
Takes two sides to “polarize”. The internal implication here that more than one idea results in a polarized condition is typical of the angry, intransigent Left.
When the left is challenged by the right, the left screams polarization.
When the right sticks together on an issue it’s called partisanship.
When the left sticks together on an issue it’s called solidarity.
You can thank the left wing pressholes in the media today for the divisiveness in our political discourse.