There'd be much less of a 1960s as we know them. Definitely no hippies. Why? Simple: No real McCarthyism with a non-communist china and no north korea. Sure, there'd be a liberalization of sexual attituds comparable to OTL and unless things somehow go REALLY luckily in the 50s still civil rights...
Bolshies accept Brest-Litovsk ltie while Germant redeploys forces west and the war lasts longer in the west. Maybe you get a harsher peace for Germany. Maybe you get france/britain going red. Who knows.
I was thinking more of encouraging social conservatism/reactionary politics combined with foreign policy neutrality. As far as direct military expansion? Probably what you said, but even then would be way more looser and informal than say WarPac dynamics.
Spreading Tsarism, ORthodoxy and autocracy. Probably some combo of the old Great Game plus post-2008 efforts by Putin to fund every reactionary movement in the west.
Absoltue best-case outcome I can get for a congo rolling all sixes is a developmentalist dictatorship on it's second or third leader at Kenyan levels of development in 2024. Compare this to OTL's warlordism and other problems in that country, though.
reread the thread will you get to the possibly non-canon future update with an ongoing civil war/warlordism. you want a flashpoint to break up the US? Well, you just proposed an OBVIOUS potential one.
It'd be no better than OTL. Actually it'd probably go worse than OTL assuming immigration/movement of factory jobs overseas or to robots so even less economic opportunity. to work with
If you want a smoother civil rights project, probably have Dewey win in 1948 and be a two-termer, locking in...