Gender in Wall-E

I don't really have much to say about this, but it struck me when I finally saw Wall-E (which is brilliant and deserves every accolade it can get):

Wall-E, the masculine protagonist, is a robot whose job is to literally clean up the mess left behind by humans. More figuratively, it is a care-taker, protector, preserver, nurturer (e.g. the cockroach, the plant), a lover, etc: the roles of a house-wife and mother. Throughout the film, Wall-E's only goal is to win over Eve (excepting a brief period before the finale when Wall-E gives up and acquiesces to Eve's insistence on "directive")--what characters are bemoaned for often the entirety of their character being their desire for a romantic interest?

Eve, the feminine protagonist, is a robot whose job is a literal Campbellian hero's journey (the archetypal masculine plot): venture into a strange otherworld, retrieve a boon, and return with the boon to the old world. It is a transgresser, a destroyer (it repeatedly demonstrates its heedless willingness to use its ridiculously over-powered weapons), an interloper, a plan-maker, a fighter: the roles of a hero, a man. While amused by Wall-E's attention, it is (at first) readily willing and even eager to abandon Wall-E to pursue the completion of its "directive".

These are not strict frameworks, of course, because Wall-E is not a movie of cliches and stereotypes. Wall-E's journey can be organized as a more fully-realized Campbellian arc; Eve spends much effort trying to preserve the plant; etc. There's also an interesting play, related to this, with the power and age of Wall-E and Eve: Eve is nearly invincible, can destroy anything, operates in an impossible fashion (e.g. its "fingers" floating unconnected to its "hands", its unaided movement, etc.), yet can be completely disabled at the push of a button (a killswitch?); Wall-E is fragile (to the point where it survives only by constantly replacing its parts with new ones scavenged from other disabled Wall-Es), has no weapons, operates in a very mechanical, physical, understandable manner, yet through sheer perseverence proves just as enduring as Eve. (In this way Wall-E very much resembles the typical American hero, exemplified by Indiana Jones and John McClane, who win through sheer stubborn refusal to lose, no matter how much damage they take, while Eve compares more to the traditional American villain, gleefully strident from the power of high-tech toys but completely destroyed once said high-tech toys have been disabled by some secret, simple weakness.)

I don't think any of this is really relevant to the heart or meaning of Wall-E, but I find it interesting nonetheless, and anything that gives me reason to remember the movie makes me happy. It is so joyful.