He was literally an Anti-Communist.

Von Neumann entered government service primarily because he felt that, if freedom and civilization were to survive, it would have to be because the United States would triumph over totalitarianism from Nazism, Fascism and Soviet Communism.[77] During a Senate committee hearing he described his political ideology as "violently anti-communist, and much more militaristic than the norm". He was quoted in 1950 remarking, "If you say why not bomb [the Soviets] tomorrow, I say, why not today? If you say today at five o'clock, I say why not one o'clock?"[391][392]

Source

Knowing how to solve problems doesn't make you a genius in politics.

See Von Neumann for example, he was a genius in math (this means he was very good in problem solving) but a total idiot in politics.

Most of the time I don't watch videos on my phone, so I just use the normal youtube app even if it has ads, but if I need to listen some music I use NewPipe.

Idk if ReVanced is easy to setup or not rn (i.e. It requires a specific version of youtube).