Violating our historical precedent in using the military against your own citizens, rounding up people to put into camps to “deport” has a long a repeated history. None of it is good. They openly say they want to go after naturalized citizens as well.
Originally, the Nazis didn’t either. The Nazis told everyone that they wanted to round them up and deport them, along with gays, trans, Gypsies, etc.
First they rolled back their legal protections and classification as full citizens between 1933-1939. In April of 1933, they organized boycotts of Jewish businesses and passed a law to purge them from the civil service along with political opponents of the regime. The Nuremburg Laws hit in 1935 eliminated their citizenship. In 1937, they started seizing their property, money and valuables. In 1938, they expelled 18,000 foreign born Jews and unleashed terror on Austrian Jews after the annexation of Austria. In 1938 and 1939 they enacted the Kristallnacht pogrom that resulted in the death of 91 Jews and hundreds of others, enacted the mass arrest of Jewish men, around 30,000. THEN came the camps and gassing.
Don’t forget, though - he tried to deport them. That was the initial plan.