Oh come on. When people ask if they are being unreasonable, it has at least crossed their mind that they are.
I still don't know what 'hostessing' is involved in having your own husband and another family member in the house if someone else is doing the cooking. As has been said, it is a case of serving drinks and maybe clearing up, although depending on the layout of the house, even that might be able to be left until the next day.
If there are other factors in play, the OP could have said, but all people have had to go on is what was in the post. Nobody has said anything unkind - maybe a few have been slightly sarcastic, and one or two have done the 'Top Trumps' thing of pointing out how their situation is worse, but otherwise, people have just answered the question asked.