Rabbi Michi, I think it may be possible to sharpen the question. That is, it’s not specifically interpretations that raise question marks and doubts, but the adoption of foreign customs and a conspicuous lack of independent creativity, creativity that grows out of interpretation of the text. What, in my opinion, requires deep clarification is דווקא the way a custom is accepted and after some time turns into a law given to Moses at Sinai… After all, the sages could easily have thrown many customs and laws into the trash heap of history, and yet they did not do so. Why and for what reason?

That’s too general a question. Each thing has to be judged on its own. I’ve already written that there is nothing wrong with foreign customs, and there is nothing wrong with anything merely because of its source. Everything has to be examined on its own merits. Sometimes adopting something is forbidden because of its source, but that is apparently only due to concerns (since in terms of the matter itself there is no logic in that at all). In any case, relating to a law or custom based on its source is what requires explanation, not ignoring the source, which is perfectly reasonable.

It is obvious that we do not observe the Torah. At most we observe things as a remembrance of the Torah.
Start with the first important commandment: the Passover offering. Then other important commandments such as the Sabbatical year and the prohibition against lending with interest.
And not only do we fail to observe them, but they even legitimized the creeping thing.

In any case, all this is our fault, beginning with the sin of the golden calf and all along the way.