You are completely not getting this. Samaritans do not agree with the Jews on the whereabouts of the Second Temple, or even the First Temple. Rabbinical Judaism is a reaction to the Jewish Second Temple being destroyed. The Samaritans did not believe the Jewish Second Temple was the Temple that God commanded built. They did not even believe the Jewish First Temple was the Temple that God commanded built.They do not think they are rabbinical Jews
The word Jewish comes from Kingdom of Judah, which had a political and religious capital at Jerusalem. The Samaritans never were part of the Kingdom of Judah, and predate it. They consider themselves Israelites, with a political capital at Samaria(thus their name to outsiders), and a religious capital at Mount Gerizim. Neither were part of the Kingdom of Judah. Their First and Second Temple was at Mount Gerizim, not Temple Mount in Jerusalem.
Depending on the theory you believe, either Samaritans split with Jews 3,000+ years ago, well before Jesus, or Jews just copied Samaritan religious writing.
Samaritans do not believe that King David was ever King of Israel, or that he ever moved the capital of Israel to Jerusalem. That goes back 1,500 years before the Talmud was finalized. They specifically do not believe anything to do with the Kingdom of Judah, Jerusalem, or Jewishness in general. They are not Jewish.Same with other Jewish sects that reject the Babylonian fictions.
There is a Samaritan Torah, and a Jewish Torah. The Samaritan Torah makes clear that the Temple is to be built at Mount Gerizim, and has other differences. More interesting, the Samaritan Torah is in Paleo-Hebrew, and uses more primitive language. Almost certainly it is the older Torah.There is only one Torah, the one attributed to Moses.
The Old Testament is based (in part) on the Jewish Torah, and it would appear the Jewish Torah is based on the Samaritan Torah. That being said, the Samaritan Torah is significantly different.
Samaritans would argue that First Temple, and Second Temple Judaism is a complete fiction. Pretty much everything after Moses about Judaism is wrong to them. That would be a major chunk of the Christian Old Testament that they disagree with.Rabbinical Judaism and it's Oral Torah' are a fiction.
For instance, they would see no point in Jesus driving the money changers out of the [Second] Temple, because they did not believe it was the real Temple. Jews had destroyed the Samaritan Second Temple a hundred years before Jesus.
The irony is you say this after getting the entire history of the Samaritans wrong.the average Baptist is more Jewish than any rabbi babbling orthodox nonsense.