Truth does not change with the changes in political parties, current philosophies or trends.

” a thing cannot be and not be at the same time”— St. Thomas (Summa Contra Gentiles, Book 1, chap. 84)

“…reason’s first principle is the principle of contradiction. He who denies this principle affirms a self-destructive sentence.

To deny this principle is to annihilate language, is to destroy all substance, all distinction between things, all truths, thoughts, and even opinions, all desires and acts.

We could no longer distinguish even the degrees of error. We would destroy even the facts of motion and becoming, since there would be no distinction between the point of departure and the point of arrival … without purpose or nature. It would be attraction and repulsion, freezing and melting, both simultaneously” … More

–Reality A Thomistic Synthesis, ch 1, Reginald Garrigou-Lagrange, O. P. 

A thing can only be what it is, as Created by God. It can never be what it is not.

“The Church is intolerant in principle because she believes; she is tolerant in practice because she loves. The enemies of the Church are tolerant in principle, because they do not believe, and intolerant in practice because they do not love.” —Fr. Reginald Garrigou-Lagrange.