The G5 can survive without the P5.
The P5 cannot survive without the G5.
They break away from us at their own peril. What will happen when OSU has to replace the 3 non P5 patsy OOC home games each Sept with actual home/away agreements with other P5 schools?
Suddenly there's a lot more P5 teams with 1 or 2 losses in Sept and their fans will want someone's head on a stick.
Oh, they'll still play those games. They just won't share any of their TV and bowl money and etc.
TV and bowl money might go down, but individual payouts for "body bag" games will go WAY up. If we have no access to bowls and their fancy playoff system, what other incentive do we have to play those games if we're not considered in their league?
The ohio states, penn states and floridas with unlimited spare change can handle it, but is Indiana going to start paying upwards of 2M for visitors to come to their stadium when football revenue isn't in the same league? Does Indiana even want to compete on the same level as osu mich wisconsin? In a 120-team division, Indiana can be in the bottom of the big 10, but still be perceived as midpack for Div1. If the P5 separates, the Indianas of the world quickly become "have-nots".