But even though most Dark Elves probably prefer the Empire, I have a feeling mine would have much more sympathy for the Stormcloaks.
Her reason being that the Nords fight for their own deity and the freedom to believe in that. My Dark Elf would be pissed if it was forbidden to worship Azura. So she would understand the opression the Nords feel for banishing Talos. And about the Dark Elves who get discriminated, well honestly only that drunk guy and the beggar seems to bully them. The rest don't really show any problems with them. And it is understandable that they live in low quality homes, since they are refugees who do not have to pay any taxes. My Dark Elf would notice that and not really complain about it.
Anyway, I wanted to hear your opinion about this. Could you come up with any other reasons for a Dark Elf to join up with the Stormcloaks?