No that’s realistic lol. Nobody would have said shit other than to agree, because after all of that everyone would want a hot dog. Humans in general don’t deal with mass change that well. Look at Covid. They’d bitch at the government, bitch at their neighbors, and find a nationalized group to blame for why the way of life changed. It wasn’t that long of a time period in interstellar. The whole collapse happened over about 30 years. So anyone over around 40 would have remembered a normal time and would agree with grandpa. They’d have seen their lives get worse and worse and desperately want to go back to the old life.