The Lubavitcher Rebbe once said:
“The fact that many rabbis in America don’t have beards, and that Yidden flee from a community when goyim move nearby, and that land in Eretz Yisroel is being given away, – these are all rooted in the same problem: the inferiority complex the Yidden have with regard to goyim. If only Yiddishe pride would be strong, all these issues would be resolved.”
“Living Jewish, issue 691#, Parshas Shelach” p. 3