Actually the point from which we date our Calendar is the province of everyone—not just an elite group of archeologists—no matter how many random letters they put after their names.
There’s no reason that the field of archeology should determine what we call the calendar—since EVERYONE relies on the calendar for every date and time we set.
Just as the spelling and definitions of the original Oxford dictionary were intended to be as democratic as possible—reflecting actual spelling and usage, and not what some elite commission says SHOULD be the spelling and usage (e.g. as in French and German...) so too the archeologists and others academics blinded by Science... are wildly outnumbered by those of us that prefer to be honest with our calender—dated from a rough estimate of the birth of Christ—and choose to use BC and AD.
This is the Calendar of the Christian world...and those who don’t like it, should use some other calendar and not misname ours!
They aren’t trying to determine what you call your calendar. BCE and CE are generally only used by the professional history crowd, and even more so by those whose specialty is outside the normal bounds of the “Christian world”. There’s no movement by them to make anybody else change, they don’t really care how you label years, much like how you probably don’t care how they label years.