That would imply that usa has better missiles. They don’t and we know this because up until quite recently there were arms control treaties which meant that all the research and tests that usa was doing were being watched.

Their recent tests of hypersonic missiles and their inability to produce enough air defense misslies shows that they don’t have the capability to create new better secret missiles or even make enough old missles to keep up[ to demands.

The usa’s inability to increase production of shells, long range guns, armored vehicles, etc. all show that america doens’t have the industrial capability to even produce enough basic weapons. They can’t even produce enough of weapons based on 80 years old tech.

Even if somehow they did have more advanced missiles they wouldn’t’ be capable of producing enough to change the tide of the war.

and all that doesn’t even factor in the new export restrictions on critical rare earth minerals that china has a virtual monopoly on.