keeping kosher isn't a sin, stupid ass. Nor is being Jewish.
The Bible says it's a sin, just like it says homosexuality is a sin.. Are you saying the Bible is wrong
The Bible doesn't say that violating the dietary laws are sins. The Lord just said don't eat these things.
If you read the dietary laws, they were brilliant for the day. Either the law came from the Lord, or someone very VERY knowledgable. They are all spot on for health. Especially for the time.
We know now that pigs can cause trichinosis if not properly prepared, rabbits have stomach parasites for most of the year. Shellfish can trigger deadly allergies. Eagles and buzzards are carrion eaters.
Wash your hands, your pots, your dishes that have come into contact with meat. This, from a people who didn't know a bacteria from a backgammon board. Maybe it wasn't the Lord but a time traveling scientist.
Don't wear cloth made of wool and linen woven together. Of course not, it will fall apart.
There is nothing in the bible that calls these acts SINS. Sins are harmful acts.