Written Torah and more.

Hello Rabbi. Thank you for the insightful and even challenging things.
 
In my study of your teachings, in several places, I had doubts about your perception and a desire to clarify and delve deeper into the matter.
A. Maimonides wrote that one must: "Believe that all of the Torah that we have is what was given to Moses from the mouth of the mighty One… and that he is in the rank of a scribe, who is called and writes it all – the words of its history and its stories and its commandments, for this reason he is called a legislator. Every word in the Torah was given to Moses."
Does the Rabbi disagree with these things? Are there sources in the words of our sages that disagree with these words of the Rambam? And, according to the Rambam, simply every system requires intellectual and research-based foundation. What is the intellectual method by which the Rambam requires a person to reach this belief?
on. This belief, in the presence of Mount Sinai, in the Torah from heaven, in the encounter between God and man, no matter in what form – its essence is in tradition alone. In the acceptance that we received from our ancestors, and as the Rihal and the Kuzari say, that it is a sign and a miracle done to many and cannot be denied. Do you think that tradition in itself is a sufficient tool to reach faith in the Torah from heaven or do we need the faith talent inherent in us? Can a Gentile reach the same recognition and faith in the Torah from heaven according to Jewish tradition as a person from Israel who received it from his ancestors? (And if not, is it because of faith talent or educational default)
C. Regarding the authority of the Sages in the Oral Torah. Simply because the Oral Torah is a human creation that our Sages created. My question is regarding the acceptance of their creation. From your words, I understand that the Sages have "authoritative" validity, not intellectual validity. In other words, it is impossible to determine that this is the interpretation of the Written Torah, that this is how it is correct to issue an equal decree or to judge a matter, but the Sages can determine that we must follow one interpretation and not another, because this is how the Jewish people accepted it. Do I understand correctly? If so, what are the limits of this authoritative acceptance, what is its status in our day? Can a person today rule in halakhic law or establish a court of law contrary to the prevailing halakhic perception in Judaism that is faithful to halakhic law? And also, what is the validity of this acceptance? I recall from the words of Rabbi Kook zt"l that this acceptance has validity from Torah.
Thank you very much!