Multipolarity" means the world becomes more like a jungle. Eat or be eaten.
Well that's from West Point of view. The other POV is also means more bargaining power for little power (relatively) in Global South. Do you honestly believe currently it is not already law of the juggle with Western Hegemony Unipolar? Look on the reality.
Most will come with either West or Russia-China? Multipolar is not same with Bipolar World. The bargaining power from some in Global South also increasing, that they can create their own polar. However for one thing again is the world will represent more market power that control by not one center. Unipolar actually is more prone to the law of jungle.
Bedding with Russia in particular, but also China, will not help in this respect.
So the answer is to follow Western market demands, that keep the industrial edge in the West, right? Well for that most of Global South can say no thank you. Besides is the green economy only come from the West? That's really condescending thought.
Global South will need industrialisation. Industrialisation is the most effective way to increase population from poverty trap. If West doesn't like China dominate Global South infrastructure development, then do the same thing. Out bid China on Global South development, instead complaining on China and Russia drive.
Why should Global South going to use more expensive Western Tech, if they can come to industrialisation stage using Chinese, Russia, or Indian tech. If it is much cheaper for African countries, buying train from India for example then buying from France, then they will go if it's make sense. Off the course the quality is different, but if it's can work with fraction of costs, then why not.
Why should Global South buy solar panel or wind turbines from Europe, when they can buy it from China in much cheaper costs. China also going green, and what base your claim that the green tech only available from West? That only West can provide Climate Change environment? Get into reality.
West is already rich, while most of Global South are not. However most of Global South that control the commodities needed. So stop lecturing this is for democracies against authoritarian. This is about who can control the market in future.
Btw, non interference only come from Russia and China? West is the most interfering forces on Global South for decades. What they've done now is claiming more bargaining power, which some in West off course doesn't like it.