You wouldn’t think of a European community of being so insanely pro Russia, yet on every single post mentioning Russia, any negative comments about Russia or their government will get downvoted to hell, some people get banned. I would not be surprised if I am banned or downvoted for posting this. People who are not just blatantly spamming Kremlin propaganda, please say why you are so pro Russia, to someone confused.
Adding on to this, Stalin, Mao, Kim Il Sung, and Ho Chi Minh had to make similar choices during WWII. Ally with liberals like France and even reactionaries (such as the KMT) to fight against the Axis Powers or fight the Axis alone while maintaining ideals, but risk other nations joining them (especially the UK and US).
Materialism of their situation led them to joining the rest of the Allies, especially when it meant getting Lend-Lease deals or intelligence through their spy networks. Communist states of today find themselves in the same situation regarding Russia and Iran. Maintain ideological purity or actually have a shot at destroying capitalism. Furthermore, they can plant the seeds for future revolution by supporting reactionaries in their struggles against other reactionaries.