NonImpeditiRationeCogitationis
The answers aren’t pre determined to prop up our mesorah. It seems you are suggesting that the Torah is secondary to your assumptions of fact. Chalilah! It seems you are strangely misguided. Please set your logic straight for your sake!
תורה צוה לנו משה מורשה קהילת יעקב
אחזנוה ולא נעזבנה
There is no such thing as faith in Judaism. We have only knowledge and testimony. Faith is for the foolish Christians. Faith is for feeble minded idiots. One must know Hashem, not have faith. וידעת היום, אתה הראית לדעת
Emunah is mistranslated as faith. Emunah is trusting that Hashem knows best even when things seem dark and hopeless. That is not faith. That is like knowing that the pilot will land safely. Or that the architect will execute his blueprint. We know Hashem, we do not merely believe.
In reply to rightwriter, of course we have changed. Nations are constantly changing. We are the same nation and people as always because of how we identified as a nation from the very beginning. Each nation has a way of self determination. The Roman’s, Egyptians, Persians are all gone because they are currently nothing like they were before especially in regards to their respective expressions of national identity.
Am Yisrael continues it’s expression and core cultural aspects of yore ad hayom hazeh. See Rashi on the pasuk עמים הר יקראו