That is indeed quite bizarre. Most of those questions literally don't matter for a citizen, and if you were somehow falsely claiming to be a citizen, the other

That is indeed quite bizarre. Most of those questions literally don't matter for a citizen, and if you were somehow falsely claiming to be a citizen, the other questions also don't matter because a false claim to US citizenship is punished more harshly by US immigration law than the other things they were worried about. (Such false claims make one permanently ineligible for permanent immigration to the US, with no waiver available, and require a waiver for any kind of nonimmigrant admission.)