It sounds like Fallacy of Presumption.
There are situations of presumptions such as
- insufficient/incomplete logic coverage; missing premise
- latent conditions (presuming a previous regimen still holds)
- circular dependency/complexity
You should be able to Google search on it.
1. Fallacy of presumption due to missing premise.
Let's say in a certain city, people there have two attributes
- either rich or poor
- either famous or mundane
Then an alien UFO ship (UFO would be an oxymoron, when the aliens identify themselves) captures the city and issues the edict
- Everyone will have a place in the new city that we will rebuild
- Only the rich and famous will be allowed to roam the city freely.
- Whereas the poor and mundane would be confined indenture.
Then the people start to wonder. The new rulers say everyone, but what about
- the rich and mundane
- the poor and famous?
Then an alien leader responded with the presumption
- all who are rich are famous, that is why you earthlings say rich & famous.
- there is no such thing as poor and famous, because we have not witnessed such in the TV shows your planet's broadcast.
2. Let's look at another case of missing premise
- pigs eat corn
- Anna eats corn
- Anna is a pig
3. Fallacy of aliasing.
Different concepts sharing the same name/word.
- The king said, all houses should be encased with stones.
- Should the house of Israel and Judah also be encased with stones?
- You will be saved by faith alone, preached the pastor.
- Then George yelled, Amen! I have faith in the lottery ticket I just bought, praise the lord!
4. Fallacy of complexity and circular dependency
Homosexuality is wrong.
- It is wrong because it is unacceptable
- It is unacceptable because it violates norms
- Violating norms is wrong