Of course Hitler won. He won the moment the same antihumanist ideas that formed most of his ideology were also adopted by your very own top social class and government executives back in the 1920s and 1930s.
Look at the names of the founders and forefront proponents of every "population control" organisation that arised back then, and read what they wrote, it's all the same: the focal point is about exterminating and/or sterilizing the "genetically inferior races" and the "feeble-minded", at an industrial scale, in order to "improve" the human race "stock" and preserve its natural environment from overuse and exhaustion.
Then look at the conditions enforced on third-world countries in exchange for foreign US aid and world bank aid back in the 60s and 70s: programs of mass (often forced) sterilisations for the poor populations, that were done in unsanitary conditions.
The nazis have won, and today they're in charge of most of your foreign aid programs and environmental protection programs, they have been exterminating for decades, they still are at it right now.