<cynicism> Ah, the common people. The trouble with them is that,
well, they are so common. It is a good thing that big brother and
sister and the lords are there to look after their welfare. </cynicism>
The "royalist" quote appears to be another borrowing by Eliot. Here
is a cut and paste:
Many scholars have noted that when Eliot described himself as
"classicist in literature, royalist in politics, and anglo-catholic in
religion" in the preface to his 1928 essay volume For Lancelot
Andrewes, he was paraphrasing a description of Maurras that appeared
in a 1913 number of La Nouvelle Revue Francaise (see Thibaudet).
I think that if you really want to explore this aspect of Eliot you have
to look closely at how Eliot related to Maurras.
Eliot liked the the fact that his Order of Merit came from the King
and not Parliment.
TSE disliked that Roosevelt fought against Churchill's colonialism.
The Watson article noted below has a section on Eliot and Maurras that
goes back to Eliot's Sorbonne year.
 George Watson, "Quest for a Frenchman,"
The Sewanee Review
Volume LXXXIV, Number 3
Summer 1976 (July-September 1976)
(under the section entitled "The State of Letters")
 William Turner Levy and Victor Scherle, "Affectionately, T.S. Eliot"
J.B. Lippincott, New York, 1968, pp. 86-92