States never tolerate separatist movements, so what you are saying is that your state is imperialist as well. Considering that you are fine with that, we can conclude that you are also fine with Russia.
But also, the part of the Russian government that did support the Chechen separatists was literally shelled with tanks by the NATO-backed forces.

georgia

Georgia literally attacked the South Ossetian separatists and the peacekeepers.
It's extremely silly to be both pro-Georgia and pro-Chechnya in this context. By your own logic, one should condemn Georgia as imperialist.

and indeed Ukraine

Ukraine tried to join the gang of torturers and genocidaires that is NATO, and to bring their personnel and weaponry close to the most populated areas of its designated enemy. That is an act of aggression and the rest of the world has every right to defend against that.
Furthermore, Ukraine has invaded at least Iraq and Syria, which you are completely fine with.
Furthermore, Ukraine has been fighting its own separatists, whom Russia has been helping. By your logic, you should support them.

There was/is also the Wagner group which represented Russian presence in Africa.

Were they attacking African countries the way your empire has been doing?

Also the war crimes committed by Russia in the Kharkiv Region says everything I need to know about them.

You are fine with war crimes when Ukraine commits them, so you are fine with the Russian war crimes as well.

So given this, I do not support either America or Russia. I support Ukraine's independence,

Currently, the Ukrainian government is a USian puppet.

and the way to do that is to send military aid, which I fully support

Military aid to the separatists and Russia, that is. Surely you don't support states that try to join NATO, the most prolific invader in the world, do you?