In 1900, Bublick went to Paris to help a group of Białystok families trying to gain entry to Argentina under the Baron de Hirsch Fund.
After obtaining the appropriate visas, Bublick joined the group for three years as a Hebrew teacher for their children.
As a young man, Bublick drifted away from traditional Jewish life for the Haskalah (Enlightenment) Movement, but eventually returned to religion and became a staunch advocate for Orthodox Judaism.
In his book Min Hametzar, he predicted massive intermarriage and detected danger in the Conservative movement.
He served on the executive board of the World Zionist Organization (1919-1926) and the Jewish Agency for Israel.