I would say read the bible when Jesus talks to the jews.
Jesus telling them that they do not belong to God but to the devil in john 8:
44You belong to your father, the devil, and you want to carry out his desires. 45But because I speak the truth, you do not believe Me! 46Which of you can prove Me guilty of sin? If I speak the truth, why do you not believe Me? 47Whoever belongs to God hears the words of God. The reason you do not hear is that you do not belong to God

In the story about the Caananite woman, Jesus says that he only came for the israelites, not dogs like her. She likens herself to a dog and Jesus shows her mercy for her faith in him.

So jews that don't believe in the words of Jesus aren't Israelites, they are children of the devil. Jews that do believe in Jesus are called Christians. All jews believe in Jesus. Because as Jesus said, those that are called will hear, those that are not called will not hear. And Jesus came for the israelites, jews are included in that.

The point being that those who call themselves jews today and don't believe in Jesus are pretenders, liars, children of the devil.

I think a place to find information about this is a site called Christians for truth, search for their articles about israelites and who are the jews.

Another source of information, outside of the bible, would be the Nicea letters from 325, where the founders of the Catholic church distances themselves from the jews, the father killers. Or read Urban II's speech about the first crusades and related letters. The Christian nations didn't go to war over Jerusalem to save Israel for the jews, but against the jews and muslims, so that the Israelites (Christians) could regain their promised Holy lands. Deus vult. Or read Luther about the jews. He is not nice about it.

About salvation:
John 14:6 6 Jesus answered, "I am the way and the truth and the life. No one comes to the Father except through me.

I would seriously recommend just reading the verses where Jesus speaks. Nowhere else in the bible.
He takes huge issue with the "jews" of his time, money lenders etc.
Another clue that Jesus don't like modern jews. He told us not to call anyone a Rabbi but him. Yet how many jewish rabbis do you know?

Can I ask you why you think it is cultic views? Because I disagree with what you've been taught by jews about Christianity?
I read the bible, the founders of the Catholic and protestant churches. If you think they were friendly with jews or that their religion included jews as the "chosen race", then you are sadly mistaken.

I would recommend reading about Israel (Jacob and Esau) in the bible. Why did God choose Jacob over Esau? Esau = Edomites = race mixers = so-called jews. Jacob = whites

There is also a video called 100 proofs israelites were whites.
Our names for one. Norway is a tribe of Israel, Naphtali, Dan is a tribe of Israel, Saxons = Isaac Sons, etc.