Does it take persecution to keep the Jewish people Jewish?

This week we read in the Torah how Balak, the king of Moab, summons the prophet Balaam to curse the people of Israel. Balaam attempts to pronounce his curses; each time, blessings issue forth instead, and he says:
“How can I curse whom G-d has not cursed, and how can I invoke wrath if the L-rd has not been angered? For from their beginning, I see them as mountain peaks, and I behold them as hills; it is a nation that will dwell alone, and will not be reckoned among the nations.” (Numbers 23:8-9)
Reading these verses reminded me of two conversations the Rebbe had on the topic of the people of Israel being "a nation that dwells alone...,” one with Yitzhak Rabin, and one with social critic, author and professor, Harvey Swados. 
Rabin recalled how the Rebbe spoke with him about his position as Israel's Ambassador to the United Nations, and Israel's position on the world stage, and quoted this verse reminding Rabin that while Israel may have friends, they still would still be “alone” and looked at differently. There was something to embrace about this. During their conversation, the Rebbe explained that what historically kept the people of Israel “alone” was a result of both the positive aspects of Judaism, our faith, and our commitment, as well as the negative forces of Jew-hatred, which helped quell assimilation and kept us together as a people. (Watch Rabin retell it here). 
The conversation with Swados took an interesting turn. What follows are notes taken by Swados, published by the New York Times, read the full piece here:
“...Earlier, you asked me about the future of Judaism. Suppose I ask you how you explain the past, the survival of Judaism over three millennia.”
“Well,” I said a bit uneasily, “the negative force of persecution has certainly driven people together who might otherwise disintegrate. I'm not certain that the disappearance of that persecution, whether through statehood in Israel or through the extension of democracy in this country, wouldn't weaken or destroy what you think of as Jewishness.”
“Do you really think that only a negative force unites the little tailor in Melbourne and the Rothschild in Paris?” the Rebbe asked me.
“I wouldn't deny the positive aspects of Judaism.”
“Then suppose that scientific inquiry and historical research lead you to conclude that factors which you might regard as irrational have contributed to the continuity of Judaism. Wouldn't you feel logically bound to acknowledge the power of the irrational, even though you declined to embrace it?”
The conversations the Rebbe had with Rabin and Swados give us so much to think about. In the meantime, let's embrace our beautiful heritage by deepening our Jewish education, and strengthen our observance of Torah and Mitzvahs so we can live our faith with pride.