Its true that how we use them makes a big impact. If I recall correctly, some policy changes in France reduced the problem massively. But they're so cheap and efficient that we're simply emitting more lumens than ever. For something like $40 USD you can get a flashlight 100,000x brighter than the sun. This is driving rapid lighting in developing countries.
Another factor is that human eyes are much more sensitive to blue wavelengths at night, which LEDs emit more of.