The Chargers also originated in LA.
I am aware that the Chargers were in LA for the 1960 season the year the AFL started before moving to San Diego for the past 55 seasons. Your point? That LA has a claim on the team? Seriously? The AFL was like Arena League football for the first few years. But they got better, and exposed the NFL’s failure to expand the fan base sufficiently. Pete Rozelle, to his credit, figured that out and made the NFL the national pastime.