You neglected to include the entirety of definition attributed to Terry Kupers... ironically, the part which would make it less simplistic than you make it out to be:

    In a psychoanalytic context, Terry Kupers describes toxic masculinity as "the need to 
    aggressively compete and dominate others" and as "the constellation of socially 
    regressive male traits that serve to foster domination, the devaluation of women, 
    homophobia and wanton violence".

If you're going to criticize the term, fair enough, but don't be disingenuous in doing so. It's obvious from reading that sentence in its entirety that he wasn't defining toxic masculinity as being merely competitive drive in all its forms, absent any relevant context or reference to psychological or social harm.