There is no supporting verse that you can use to come away with that conclusion. You are raised in a Christian culture that believes God used Jesus to make all animals food. But no verse says such a thing, instead it says that God doesn't change and that some animals are not food.
Ge 9:1 God blessed Noah and his sons, and said to them, “Be fruitful, multiply, and replenish the earth. 2 The fear of you and the dread of you will be on every animal of the earth, and on every bird of the sky. Everything that moves along the ground, and all the fish of the sea, are delivered into your hand. 3 Every moving thing that lives will be food for you. As I gave you the green herb, I have given everything to you. 4 But flesh with its life, that is, its blood, you shall not eat.
The Lord's Apostles repeated God's orders to the Christians:
Ac 15:24 Because we have heard that some who went out from us have troubled you with words, unsettling your souls, saying, ‘You must be circumcised and keep the law,’ to whom we gave no commandment; 25 it seemed good to us, having come to one accord, to choose out men and send them to you with our beloved Barnabas and Paul, 26 men who have risked their lives for the name of our Lord Jesus Christ. 27 We have sent therefore Judas and Silas, who themselves will also tell you the same things by word of mouth. 28 For it seemed good to the Holy Spirit, and to us, to lay no greater burden on you than these necessary things: 29 that you abstain from things sacrificed to idols, from blood, from things strangled, and from sexual immorality, from which if you keep yourselves, it will be well with you. Farewell.”
The Apostles themselves were living like the Gentiles:
Gal 2:14 But when I saw that they didn’t walk uprightly according to the truth of the Good News, I said to Peter before them all, “If you, being a Jew, live as the Gentiles do, and not as the Jews do, why do you compel the Gentiles to live as the Jews do? 15 “We, being Jews by nature, and not Gentile sinners, 16 yet knowing that a man is not justified by the works of the law but through faith in Jesus Christ, even we believed in Christ Jesus, that we might be justified by faith in Christ, and not by the works of the law, because no flesh will be justified by the works of the law.
This apparently settled the issue for several centuries until in modern times some groups returned to advocate for a Saturday Sabbath and for Kosher regulations.
If catfish disgust you, by all means follow your conscience. I don't eat catfish, either. But I eat shrimp and lobster. I don't eat the meat of dogs, cats, rats, squirrels, or monkeys but in many cultures they do. John the Baptist ate locusts and I don't think these were considered clean. I eat beaf but in India they don't.
Many people today are against eating beef bec of pollution. In the Middle East, they considered pigs unclean (for good reasons) but the Greeks ate pigs and they introduced pork when they governed the Middle East. The Apostle Paul said all food is clean. But if a certain item offends your conscience, don't eat it.