That's the best part about drawing comparisons between fictional groups and real world minorities: they're almost always counterproductive. Whether it's Skrulls, mutants from X-Men, or vampires from something like True Blood or whatever, the minority stand-ins in fiction are almost always legitimately dangerous. People in the Marvel universe have way more reason to be afraid of and distrustful of literal shapeshifting aliens than we have to be afraid of Jews or whatever other group they're substituting for this week.