>>118350369People get off to Maggie Gyllenhaal instead of Katie Holmes for the same reason racist Southerners get off to pregnant Anne Frank instead of some blonde bombshell LARPing as a qt tradfu. Katie Holmes is basically an airhead with nothing but a nice face and a pair of tits to her name. Maggie is a butterface, but has an actual genuine personality to make up for it, and still has a decent pair of tits.
You want to fuck her because you identify with her on a personal level, rather than just because you think her face looks good.