Quote from your article:
"Leviticus clearly states that pigs, because they do not chew their cud, are an unclean meat."
That is Not what the Bible says. And besides that....
If that were true God would not have told Noah that all meats are clean for man to eat. Which means all meats were clean for Abraham, Issac, and Jacob as well. The LAW against eating swine did not come until 430 yrs. After Abraham. You expect us to believe that God had Godly men eating meat that was unclean for them for about 1500 yrs. or so?
Gen 9:2 And the fear of you and the dread of you shall be upon every beast of the earth, and upon every fowl of the air, upon all that moveth upon the earth, and upon all the fishes of the sea; into your hand are they delivered.
Gen 9:3 Every moving thing that liveth shall be meat for you; even as the green herb have I given you all things.
Gen 9:4 But flesh with the life thereof, which is the blood thereof, shall ye not eat.
They were all living under grace and all things were clean for them. Then under the Covenant of the Law of Moses came the food restrictions. Christ followers are not under that covenant. We are in Christ. We are the children of Abraham, like Issac by Sarah, who is Mt Zion. Not like Ishmael by Hagar, who is Mt Sinai.
Gal 3:16 Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.