I think they can certainly apply to any situation where the logic is flawed, so arguing that something is necessary since it’s part of another system which itself is unnecessary, is a logical fallacy
If we accept that something is a necessary component of an unnecessary system, but then use that fact to argue that the component is necessary in absolute terms, that’s a logical fallacy given that it’s not absolutely necessary if the system it’s a part of isn’t absolutely necessary
After researching I found it can be called a false necessity fallacy or false requirement fallacy
Logical fallacies do not involve themselves in questions of worthiness, usefulness, goodnesss, etc.
If the fallacy relies on this pattern of detecting necessary and unnecessary, then it is not a logical fallacy.
I think they can certainly apply to any situation where the logic is flawed, so arguing that something is necessary since it’s part of another system which itself is unnecessary, is a logical fallacy
If we accept that something is a necessary component of an unnecessary system, but then use that fact to argue that the component is necessary in absolute terms, that’s a logical fallacy given that it’s not absolutely necessary if the system it’s a part of isn’t absolutely necessary
After researching I found it can be called a false necessity fallacy or false requirement fallacy
But the term you’re looking for is tunnel vision.
It refers to committing resources to interpretation of the world around a single immovable assumption.