YIVO in Manhattan has many bundist and Jewish Daily Forward acrchives showing how pervasive the socialist Yiddish movements were.
Joseph, the reason I am able to argue (lu yitzuyar I’m arguing, since you never actually quoted it for me to examine, so until I see it I can say “nisht da aza Rav Moshe)is because I heard otherwise from my Rebbe. He felt that kolel should be limited in length, after which one imitates Hashem and is mezakeh the rabbim. Such is the force of having a Rebbe.