The Fixed Stars are quite important in natal astrology, it's arguable that they are what made Hitler, Hitler.
The difference is that Antares is a good star, mostly.
Antares is the heart of the Scorpion, the problem with the star is that - like most principle stars - it is a fortune star that seeks to advance the native (especially when on the MC), but keeping with its color and constellation association, it seeks to force itself unto the native in a way that maybe the native can't seem to control, and so is definitely a test to the will power. So, on the one hand, it can lead to good fortune, or it could lead to someone who is self-defeating due to their stubbornness.
MC is a good place for it, but it might make you seem hard-headed and willful to others. It's mostly of the nature of Mars, if you can't tell.
Now, there's no possible way your the "next Hitler" simply because Hitler had no existent water energies, none.
Actually, I would say it was Hitler's lack of a strong planet and his unfortunate star placements that led him to be who he was.