What's the point of believing random stories? Where is your evidence? I can make up stories and ask you to believe them as well.
you all make up stories here
there are some rules in proxy wars which russia followed and USA doesn't
the main is not to do terrorist attacks on enemy territory. and contain conflict - it always worked - korea, vietnam, afganistan etc.
as Ukraine crossed red line now the main issue if USA knew or approved or helped to organize
Russia gave quite a lot of warnings recently - the last one was striking military facility just after zelensky visted it and publishing drone footage of him
now I think the best scenario for USA is Ukraine becomes new Gaza and Russia doesn't retaliate directly
