One way or many ways?? Please explain.
This is not really rocket science.
JESUS IS THE [ONLY] WAY, THE TRUTH AND THE LIFE.
JESUS IS THE [ONLY] WAY TO THE FATHER. NO MAN REACHES THE FATHER BUT THROUGH HIM.
There are many sequences of events, thoughts, experiences, revelations to an individual's mind and heart and spirit which result in him accepting Jesus as Savior. Many are different person to person. It's more than reasonable that such would be true for couples, families, people groups.
Not really that difficult, group.
Certainly we are exhorted and must do all we can and are called to individually in evangelizing the Jewish people.
But I also believe that God Himself will ADD HIS OWN DRAMATIC OUTREACH to them IN HIS TIME and in HIS WAYS and that The Church as well as the world will be in awe when He does.
It's just His nature; His bent; and I believe, will turn out to be a very beautiful and fitting part of His Promise to His Buddy, Abraham.