No he is not directly Hitler but he is using Hitler like rhetoric

Claiming to protect Russians in East Ukraine like Hitler did German speakers in Sudetenland and moving in troops. Russian rhetoric for expansion mirrors German white supremacy rhetoric about those "lesser" people's.

Russian tyranny over LGBTQ and others

Russian aggression- attacked Georgia and still occupies part of it. Occupied Crimea and east Ukraine and holds sham elections.

Just because Putin isn't building gas chambers ? All other actions and rhetoric out of the Russian state is very similar. Just check out Alexander Dugin