Earlier quoted context omitted.
You know it's not by accident, right? https://en.wikipedia.org/wiki/General_Motors_streetcar_consp...
Under "Counterarguments" section it's been argued that the streetcar lines were already on a downward decline by the time GM bought them, so blaming GM seems tenuous.
(There were many other factors, including their overexpansion during a securities bubble and that their concessions were usually for a 'nickel fare' with no inflation adjustment, which lead to declining real revenue over time)