Over the 20th century, Marxists have been successful in establishing themselves as not only the standard bearer of the left, but the very definition of the left itself. Then most other non-Marxist leftists, having accepted the supremacy of Marxism found themselves politically homeless. Many of them being fundamentally post-modernist relied on their tried and true gnostic belief in unknowable truths to redefine themselves as the right. Because after all, in these modern times, the old definition of right and left no longer applies as they argue. There is no right or left as it's now us guys over here on our side of the great debate who think this and those other guys over there who think something else. So if we disagree with the other guys who say they are the left as they understand the term through the personal epiphany of gnosis, then we who disagree with the leftist must be on the right in this exercise. If a group can't define themselves logically and rationally, then that group can fancy themselves to be anything they want but they are really nothing at all.
And so we have the essence of the trans-right of non-Marxian leftists parading about in right-wing drag. They are easily spotted as they usually spend most of their time bashing conservatives and others on the right and refuse to do anything to really oppose the left other than mildly complain about them.
And in this, all the trans-right needs to add is using nationalism as a sort of boob job to complete the ensemble. Because, if the Marxian leftist is an internationalist, the those on the right must be nationalist as the right is the opposite of the left.