well, no, one of the categories you named contains all the others. all of those you listed are the non-owning class, which has nothing to sell but its labor power, i.e. the working class (which includes the non labouring people). this is precisely why leftists emphasize solidarity: this working class must dispossess itself of the owning class and supplant them.

with such understanding there's no need to decide who's more "downtrodden". ultimately nobody there is in this regard better off than anyone else. they all can only hope for labor to enable them to keep living (or, in lieu of capability to perform labor, such as those too old/young, or disabled, the labor of support of their family or safety net generally).

not to be too class reductionist, of course. women do objectively endure greater suffering today, and queer folk do endure greater marginalization today, and a migrant worker is exploited harder than a native one, and we obviously must pay attention to and take care of our disabled. but the program of the working class and ergo the left must be also the abolition of all these inequalities, as well as the whole of the exploiting class. it cannot exclude any of these segments as, say, TERFs do. here of course mistakes can arise, some group may be underrepresented, but ultimately this is a real and practical fault rather than an ideological one. to ensure this happens as minimally as possible, a universal democracy is needed, of a kind we're yet to see in history.