Maybe I should clairify, Being a native, I consider LA or the LA area to be from the Santa Monica Mountains to the Valley, south to Orange County and eastward to Pomona out to San Bernardino. It’s about 100 miles of solid concrete, structures, freeways, buildings and street lights. I don’t think the Tokyo area could match that scene from an aircraft’s point of view. It’s a vast expanse of lights. Look at a map.
I’ve seen both from the air.
I’ve lived in Orange, Hollywood, Glendale, Pomona, Costa Mesa, and several other places in the Greater Los Angeles area.