General Motors Streetcar Conspiracy
This is false, revisionist history.  During the war maintenance was deferred and many operators either went bankrupt or dramatically reduced operations.  By the time the war ended the tracks and rolling stock were all in need of replacement.The public did not love streetcars for many reasons.  The ride was rough, they were boiling in the summer and freezing in the winter.  They forced all manner of people into close quarters with one another.  Insufficient capacity meant it was not unusual for riders to cling to the sides of cars where that was possible.When freeways and buses were presented as an alternative the public embraced building new infrastructure over rebuilding the old.  Part of that is because the downsides had not yet become clear.Blaming some corporate bogeyman is always tempting but does not change the facts.  The streetcars were replaced because they fell out of favor with the public who wanted to try the new and shiny thing.