It is indeed hard to image the US military doing the sabotage, which is an act of war, and which seems clearly outside international rules of war.
And also:
Who’s getting their butts kicked in the “war”? Ukraine.
Who has actual Nazis out in the open? Ukraine.
Constantly begging for/demanding money? Ukraine.
Multiple biolabs? Ukraine.
Money-laundering capital? Ukraine.
Used their own people as human shields? Ukraine.
Alleged to have tortured Russian military POWs? Ukraine.
The list goes on. Not declaring that they ARE the culprit, but my personal belief is that they certainly COULD be.