Hitler speech January 30, 1939:
“Europe will not have peace until the Jewish question has been disposed of. The world has sufficient capacity for settlement, but we must finally break away from the notion that a certain percentage of the Jewish people are intended, by our dear God, to be the parasitic beneficiary of the body, and of the productive work, of other peoples.”
“Jewry must adapt itself to respectable constructive work, as other peoples do, or it will sooner or later succumb to a crisis of unimaginable proportions.”
“If the international finance-Jewry inside and outside Europe should succeed in plunging the nations into a world war yet again, then the outcome will not be the victory of Jewry, but rather the annihilation of the Jewish race in Europe!”
Sure, but the question at hand is whether Jews were being mass-murdered on a "death camp" scale at the time of the MSS St. Louis incident.
The answer is: no, not yet.