Z-D:
You have quoted selectively from Rabbi Shlomo Freifeld, assuming the quote supports all the things that Gedolim reject which it does not, however this is what Rabbi Shlomo Freifeld wrote:
“During the exile in Egypt, the spiritual exile in the land of Egypt, the Jewish people were hemmed in. The name Mitzrayim, Egypt, is also understood as metzarim, boundaries. A meitzar is a narrow boundary of confinement. The Jewish people were in a situation of narrowness in which the Jewish soul could not express itself.
Ancient Egypt had a highly developed culture, a big culture that made tremendous contributions to civilization. Good and fine, but the singular spirit that our forefathers represented, the spirit that emanated from the essence of their beings and that was perpetuated in their children afterwards, that spirit was stifled. When the Jewish people were immersed in the Egyptian culture, they could not express themselves in their own modes of expression. Their inner beings remained unarticulated. They were forced into a situation where they found themselves speaking an alien language, literally and figuratively.