Don't know where to start with all this vitriol present.
First do not confuse the relationship between Judaism and Christianity. While we worship the same God, almost, our paths differ greatly. The theology is too extensive to try to compare at this site. I recommend a college coarse at a Christian or Judaism college.
The following link will give some insite as to why the Jews believe as they do. It does not apply to Christians in most cases.
https://forward.com/life/403206/how-orthodox-jews-observe-the-commandment-to-not-wear-wool-and-linen/
Best of luck in your search for the truth.