I know that you think that the Europeans are actually Israelites, in my opinion there isn't really any substantial reason to believe that.

Did you read what Catholics thought about this subject 500 years ago? 1000 years ago?
Let me try to present my argument and you can try to explain where you differ in interpretation, which is fine by the way.

What did Jesus say to the Caananite woman? She was a dog and he only came for the Israelites.
His followers are only Israelites. His followers are called Christians.
Israelites are promised by God to multiply and be plentiful and to found many nations.
Jesus says to the so-called jews that if they do not believe in his word, it is because they are not jews, but deceivers/liars.
Jesus says that all the promised will hear his word, but that the children of the devil does not hear his word.

So-called jews do not hear his word, so they cannot be israelites, yet they claim to be, because they are liars.

Do you know this video:
https://www.youtube.com/watch?v=-_pBwpOoLo0

I don't really think the Jews are a race in the anthropological meaning of the word because they heavily interbreed with European

It is almost like they interbreed with the host nation and take on the skin and appearance (white-passing) of their host nations?
You could almost call them wolves in sheeps clothing.