Asking in good faith. Right now China is an emmerging power. It is clearly the better alternative for e.g. African countries right now and is certainly an adventageous power for these countries. China is not doing this out of the goodness of their hearts though. They take the opportunity because it is also a win for them. But what happens once the world power dynamic shifts from the US block towards China? Is China not going to turn into a destructive imperialist country? Even if countries like Russia and China aren't imperialist at the moment, they certainly might be in the future if they are more powerful? So does it make sense to unconditionally support them today?

I am asking this because I have heard this argument about China before and I would love to hear you guys debunk it.