You’re trying to see a difference where there is none, to justify the unequal treatment. They are both making bad generalizations about a hypothetical cashier that belongs to a certain group.
No-one is demonizing people for who they are. Making a joke about a movement is not the same as being hateful to the people it represents. Just like you don’t seem to consider jokes about Catholics being hateful to them.
At least now you’re being honest about the unequal treatment, by arbitrarily calling one minority ‘powerful’, and the other ‘persecuted’, one stereotype ‘fun’, and the other ‘hurtful’, one joke about ‘rules’, and the other about ‘identity’.
Again, you’re missing the point that this joke was about the movement, not the people it represents and who they are. Turning it into hate to those people is almost exclusively done in bad faith by people who want to discriminate one group, while protecting the other.
Have a good one.