You should not get proper Xenon (or HID) mixed up with after-market or xenon-look-alike systems.

Factory fitted HID lamps use less energy and produce more light than comparable Halogen bulbs. They improve road safety.

However, after-market system, typical on Landcruisers here, are garbage. These degrade road safety for everyone.

Only thing better than Xenon is LED due to even lower energy consumption.