Slop.

I think this one is my favorite answer so far, besides the ones people have already posted by Monkey_DDD_Luffy:

The primary contradiction in the world is imperialism vs anti-imperialism.

Socialists come down on the side of anti-imperialism.

A lot of the soft-left has an incorrect analysis that Russia is imperialist, this is not correct. It is aspirationally imperialist but the imperialist bloc in the world is the nato block led by the US. Russia in its opposition to this bloc also provides arms and helps in the defence of all the other opponents to the imperialist bloc.

It doesn't do this out of goodness. It is aspirationally imperialist. But this does not matter. The primary contradiction in the world is imperialism vs anti-imperialism. Everything that harms the imperialists increases the sovereignty in the rest of the world. Increasing the sovereignty increases the potential for revolution unimpeded by the mass genocide that the imperialists have carried out dozens of times against communists.

Another way to look at this problem is to do a thought experiment:

Tomorrow, let's say a EU country has a socialist revolution. Who are its enemies? Who are its potential allies? The first thing this new socialist country needs is the capability to defend itself from counter-revolution, they are immediately about to be attacked. Ask yourself who is going to do that attacking, and who and where this new socialist nation is going to get weapons, supplies, logistics and allies from. Is the nato block going to be nice to this new communist-led country? Or is it immediately going to throw it out and start attacking it? Are the nato countries going to arm it or sanction it? Is Russia going to view it as useful to support or as an enemy? China? DPRK? Iran? The global south? This thought experiment will lead you to making the correct analysis about who our potential friends are and who our real enemies are. I don't need to point out what the correct answers are, they are self-evident realities of the current time. Your enemies will become the nato countries, you will need weapons and you will be getting them from russia, and you will need many other things that are going to come from iran, china, potentially the dprk among others.

This is the reality of the world and a lot of the soft-left has never performed this thought experiment to come to the conclusion that while Russia is absolutely not a good country, it is a strategic necessity to socialists and anti-imperialists in the current moment.

Does that mean everyone should become loud mouths about it? Also no. That would be a tactical mistake.