If you're offended by something, you should speak out. If only to elicit clarification from the suspected source of the offense.

Once spoken, however, it's up to the individual to make up their own minds as to severity of the blow taken to another's ego.

This said, I'm about 100 pounds overweight - obese, by contemporary standards, to be sure. Yet, I recognize the fat people in this movie as hyperbole.

I choose to not be offended.