Based on the numbers:

MAGA supporters in the U.S. make up approximately 10% of the population, which is very similar to the 10-12% of Germans who were involved with or directly aligned with Hitler's military, paramilitary forces, and the Nazi Party by 1937.

So in terms of raw percentages, the level of support for MAGA in the U.S. is comparable to the percentage of Germans actively involved in Hitler's political or military apparatus in 1937.