I am not trying to argue with you or change your mind, but I will write a few reasons why I see the term proxy war often used by pro-Putin commenters to push a narrative. Not saying you are. Using the term proxy war:
1. Makes it sound as if the USA is the cause of this war (they are in a proxy war) instead of an attack on Ukraine, and Ukraine seeking help from allies. As if the USA were driving the whole thing.
2. It perpetuates a cold war approach and vocabulary, making Russia look like the superpower it was (and is not anymore).
3. The cold war way of talking about it, additionally, makes it look like there are two sides, two alternatives, which are equally valid and justified.
Because of these reasons, I say there is a narrative, and do not consider the term neutral. I personally avoid the term proxy war because of the connotations above.
> It perpetuates a cold war approach and vocabulary, making Russia look like the superpower it was (and is not anymore).
It isn't the "superpower" status of Russia that makes this a cold war, but the "nuclear power" status. It is precisely a proxy war because you have two nuclear powers that are explicitly avoiding direct conflict due to the risk of nuclear war.
However, One might argue that the true cold war is between the USA and China and that both Ukraine and Russia are proxies.
> The cold war way of talking about it, additionally, makes it look like there are two sides, two alternatives, which are equally valid and justified.
In what way? "Cold war" absolutely doesn't have any connotation of moral equivalence between the two sides.
This is the sort of weird absolutism and rejection of nuance that is a hallmark of propaganda. It is absolutely possible to assign culpability to certain actions taken by the US without even remotely asserting that both sides are equally culpable for the war in Ukraine.
It is possible to think that containing an expansionist nuclear power without triggering a nuclear war is hard and requires a walking a fine line while also thinking that there are powerful forces inside the US that stand to gain a lot by encouraging and then prolonging this conflict.
Part of the power of narratives is that they become an easy way to group and dismiss dissent without engaging with any of the specific concerns expressed in that dissent.
This is also a "both things can be true" case. Obviously the supporters of a proxy war are allies of the party they're supporting.