It is possible to make an argument that picking a fight with Stalin in late 1945 made military sense.
It is not possible to make a case that the American people would have supported such a war after 4 years of pro-Soviet propaganda. Since ours is a democratic society, a war cannot be fought without the people’s support.
Not to mention all those pesky Constitutional issues.
Not to mention that the American left only supported ANY war against Hitler in order to SAVE Stalin and that be the priority over defeating the Japanese who actually attacked us.
A war against Stalin would have required the military annihilation of America’s Democrats first.
I don't think such an argument stand for long, given what's known of the relative strengths and equipment of the prospective combatants, to say nothing about the effects that an Anglo/Soviet conflict in Europe would have in the Pacific.