Fair in what way? My point isn't about who is better. My point is that the US has been an extremely crucial partner to Ukraine, in terms of countries, _the_ most crucial partner. My feeling from the interactions on this forum is that Europeans do not see it that way.
Can you win a war with weapons alone? Can a nation survive with military aid alone?
USA is not the only crucial partner for Ukraine in this war, they are the crucial partner in a specific area. That's why it's unfair to undersell the crucial partners in other important areas. Everyone is doing their thing to support in the areas they can give support. But not everyone can give the same support, and not everyone should support in areas already covered by others.