I have to disagree that China is not making a long-range bomber. I think China is developing a long-range bomber.
Long-range missiles and bomber-delivered bombs are different stuff.
Long-Range Missiles:
1. For nuclear warheads (Long-Range Missiles are less accurate than bomber-delivered smart bombs, but nuclear explosions will fix that problem)
2. For quick attacks at any range.
3. With nuclear payloads, long-range missiles are only dooms day devices; completely unacceptable for conventional warfare.
4. With conventional payloads, they are expensive, but great methods for lightning strikes.
Bomber-Delivered Bombs:
1. For highly accurate, but slow attacks (you have to fly the bomber close to the target, and then release the bomb).
2. You can turn the bombs into smart bombs or cruise missiles for a more accurate attack or longer bomber range.
3. It costs less to drop lots of dumb or smart bombs or cruise missiles on a target than to put lots of bombs on long-range missiles and fire them off at a target, plus you get higher accuracy.
4. Once you establish air dominance, patrolling bombers (and attack jets) can bomb a target in a much more affordable and accurate manner than launching cruise missiles or long-range missiles.
3. Acceptable in warfare as long as you drop conventional bombs.
Long-range missiles, intermediate-range missiles, cruise missiles, smart bombs, and bombs all have similar purposes: to blow things up, but they have different methods of transporting the explosives, and thus, are different tools of warfare.
We know that China is interested in long-range attack jets, long-range supply/transport airplanes, long-range submarines (SSN and SSBN), and any other long-range weapons. China seems to be less interested in long-range bombers, but China is still interested. To change from a defensive military to an offensive-capable military, China will need a long-range bomber. It is not the most pressing issue, but some time in the future, China will need it, so might as well start now for the fundamentals.
China will need an offensive military as China advances and needs to protect itself and its international relationships. China has built and continues to build military bases in Southeast Asia and Pakistan. China is probably interested in Central Asia and the Middle East, too. I think China's military will continue to rapidly change from a defensive military to an defensive and offensive military.