The video has several complications (including publicizing it) and I DO NOT CLAIM TO KNOW WHAT THE HALACHAH IS.
However, I would just like to bring to your attention the following (and there may be many differences):
It is well known that Mr. Irving Bunim a”h worked hand in hand with Reb Aharon Kotler zt”l to save Jews during the Holocaust.
I believe that I heard from the mouth of Bunim and/or it is quoted in the Bunim book written by his son that Reb Aharon said (perhaps more than once) that he would be willing to prostrate himself before the Pope ym”s if he knew it would save even one Jew.
At the beginning of Min HaMeitzar, Rav Weissmandel z”l writes that he tried to convince his father-in-law Rav Unger zt”l to approach the local representative of the Church and plead with him for humanitarian reasons to order that the “expulsion” of Jews be stopped (at that point, that was what the Jews were being told was occurring and they believed it).
His father-in-law never said it was forbidden, but he said that it was a useless attempt.
Eventually, Rav Unger gave into his son-in-law’s pressure but told him that he was afraid that he would soon learn the foolishness of this approach.
When they spoke to the Priest, he corrected them and said that this was not an “expulsion” but a “slaughter” and that their goal was to exterminate the Jewish People as soon as possible. They then fled from his house (after cursing him – I believe) and Rav Weismandel understood that his father-in-law had understood the situation much better than he had.