Well, that is a strange law considering that from a physical point of view you have no way to say the difference. It is entirely possible that you ate a lot of non kosher meat without knowing.
And I cannot imagine the creator of the whole Universe caring about how you cook meat.
Suppose you did eat some non kosher meat, what happens? To your soul or whatever. Could you say the difference?
Ciao
- viole
We obey God whether or not we understand the purpose of the law, first off.
There has been plenty of speculation as to why kashrut exists. The suggestion that makes most sense to me is that it prevents idolatry in the following way:
Harry Hebrew of the ancient Israelites is not restricted by kashrut, so he attends a Canaanite wedding where he can feast. At the celebration, he meets a Canaanite woman and they are mutually attracted. To make a long story short, they are married. And lo and behold, he finds a statue of Baal in his home.
It is the same nowadays. Joe Jew goes for pepperoni pizza. There he meets Cindy Christian. They hit it off, fall in love, and are married. And, not surprisingly, he finds a Christmas tree in his living room.
Food leads to socialization. Socialization leads to marriage. Marriage leads to sharing of religions.