The question arises "How did the Jewish nation in Egypt survived assimilation for 210 years, and we the Jews living in America are slowly dying from assimilation within 230 years?" What is the merit of the Jews in Egypt?
What is the connection between Yosef HaTzadik and shoes? In the midrash, we learn that the brothers spent the money earned from the sale of Yosef on shoes. Rav Eli Mansour explains that the brothers did not wear shoes before that event. What's the significance of wearing shoes? Shoes are supposed to separate us from the tumah of the soil. When Adam HaRishon sinned, he brought tumah into the world. The brothers were all born in tahara (purity), just like Yaakov and Yitzchak. However, the brothers suspected Yosef as being a klipah like Esav and Yishmael before them, and hence, purchased shoes to convince themselves that it was Yosef who brought tumah into the land. They were of course wrong.
The Rav brings out connections of the shoes between the Torah portion and the Haftarah, and a little bit of history about the Haftarah. During the reign of the Greeks, one of their evil kings banned public Torah readings, and the Haftarah was born. He then brings out the connection between Yosef and Chanoch as gilgulim. Chanoch, according to the Midrash, was a cobbler (shoe maker) -- another connection to shoes. Chanoch intended to protect his generation from the tumah of the day with "shoes", however, he didn't succeed. Hashem, I believe, took him before his time. (Bereishis 5:23-24) However, his gilgul, Yosef succeeded in saving his descendants, thanks to the shoes that his brothers purchased and wore after his sale.
A very fascinating shiur as usual from HaRav Mansour. To learn for yourself, go
here.