First of all, it is not certain if the Nazis would rise to power if the whites won the civil war. OTL a lot of support for the NSDAP came from fear of communism, symbolized by the USSR existence. Further, a lot of support for the KPD also came from the fact that communism “had succeeded”, as well as from Moscow support. I remind that OTL in 1933 first idea was for a “grand coalition” government, which was impossible, but would be possible if the NSDAP and KPD together had only about 8% less votes. Of the USSR’s non-existence can cause the two to have that much less support, Weimar survives.
Second of all, Russia being not-communist butterflies at least some of the OTL difficulties of establishing an anti-German European alliance system. “White” Russia wouldn’t be the same pariah as the USSR was, thus making more possible for the Versailles Treaty to be enforced, preventing WW2, whether it would happen in 1934 and Germany refusing to pay reparations, or with Russia being present in Munich, causing the war to come early and Germany being squashed.
Third, there is no implication that “White” Russia would be less industrialized than OTL USSR – it could easily have undergone the same, or even better process under a different leadership. The assumption is that a “White” Russia would have to pay off its debts to the Entente and thus wouldn’t have the funds to finance an industrialization process, but it is just as likely that the west would forgive Russia its debts just to keep it within its alliance system or for any other reason. Or the new regime could just refuse to pay like OTL.
Fourth, even a less industrialized Russia would be a challenge for Germany, as it is very likely it would still get Lend-Lease aid, only more due to its greater needs. So even if the Russians would perform worse than OTL, a “White” Russia still stands a large chance of winning the war, thanks to western aid.