American like their keyboards heavy and loud like their women.
This phrase can have two meanings:
American like their keyboards heavy and loud like their women [are]
or
American like their keyboards heavy and loud like their women [do]
In either case, it implies that "American" (since they have women) are either males or Lesbian females,
or, to put it simple, that no heterosexual woman can be American.
Sexist phrases are mostly that dumb, or even worse.
They may sound witty at first sight, but when you look at what's behind them,
you find they are nonsense and their authors just courting the favour of equally dumb males,
which again would suggest they are not quite at ease with women.
Quod erat demonstrandum.