Is it? The population decline isn't good and it won't be fun times for them, but as long as they don't destroy their country by importing millions of third worlders, they can come back from that at any time.
Not if their government has designed and continues to encourage systematic gender competition. Until that changes, the birthrates will not change.
Not if their government has designed and continues to encourage systematic gender competition. Until that changes, the birthrates will not change.