There's nothing that says the major/minor divisions must be PF-neutral.
There is no duty upon the rules-makers of the .org to "level the playing field" for sub-optimal caliber or equipment choices.
In fact, isn't that the source of all the consternation over Carry/Production Optics?
At the end of the day, in any equipment-driven sport, the burden lies with the competitor to choose the right equipment for the job, including what they perceive to be the most advantageous equipment for their chosen division.
If you want to play in limited or open, it's pretty clear you need to be shooting major.