Another reason for Puerto Rico not becoming a state is because many Puerto Ricans were forced to go to Vietnam, including my grandpa. This happened even though it wasn't our war and we don't want to get involved in the US's affairs. What is the main reason mentioned for Puerto Rico not becoming a state?
1) The US forced Puerto Ricans to go to Vietnam
2) Puerto Ricans don't want to get involved in the US's affairs
3) Puerto Rico is not interested in becoming a state
4) Puerto Rico is not eligible to become a state