MEMRI TV - This is not what I meant

There's a few with Trump and Putin too. Not sure if the Obama tag exists

You can search by tag on nhentai and as you can see there's only 4 Hitler doujins so you don't have to dig much to find it. The one in the meme is pretty normal, but there's another one in which Hitler is a proud lolicon and bangs (with consent) the smaller ship girls