I have never seen any Scripture where God prohibits the use of animal products for man's everyday life and conveniences. So in that way it is clear that the political vegan ideology is a frontal assault on the Holy Bible and as far as that goes, Sacred Tradition.
Just because man has dominion over all the things of the earth does not excuse him from being destructive or wasteful.
The great Thomist Zigliara wrote, regarding vivisection (quoted in the
Old Catholic Encyclopedia article "
Cruelty to Animals"):
The service of man is the end appointed by the Creator for brute animals. When, therefore, man, with no reasonable purpose, treats the brute cruelly he does wrong, not because he violates the right of the brute, but because his action conflicts with the order and the design of the Creator (Philosophia Moralis, 9th ed., Rome, p. 136).
Also quoted in the
OCE article "
Cruelty to Animals," the orthodox Cdl. Manning, arguably the greatest First Vatican Council father (he was responsible for the definition on papal infallibility), wrote this against animal cruelty:
It is perfectly true that obligations and duties are between moral persons, and therefore the lower animals are not susceptible of the moral obligations which we owe to one another; but we owe a seven-fold obligation to the Creator of those animals. Our obligation and moral duty is to Him who made them and if we wish to know the limit and the broad outline of our obligation, I say at once it is His nature and His perfections, and among these perfections one is, most profoundly, that of Eternal Mercy. And therefore, although a poor mule or a poor horse is not, indeed, a moral person, yet the Lord and Maker of the mule is the highest Lawgiver, and His nature is a law unto Himself. And in giving a dominion over His creatures to man, He gave it subject to the condition that it should be used in conformity to His perfections which is His own law, and therefore our law (The Zoophilist, London, 1 April, 1887).