I'm opposite..invite them and all the remaining teams that are not in the SEC / Big Ten. Form a new league that has nothing to do with SEC / Big - allow no team in the new league to play them in any sport. Let those two conference beat up on and try to outspend each other.
Our new league will have standard NIL payment limits, scholarship limits, transfer rules, etc. Each team receives the same financial support from media.
I think this new league would be a lot more fun and healthy for the student athletes.
In essence...this new league replaces the NCAA and all their mistakes.
In all honesty, it is going to be incredibly hard for a team not in the big 2 conferences to be competitive long term going forward. So instead of trying to be the third best conference...I say screw them and let them eat cake!
I go back and forth on this. If the Big 2 do their own thing and only play each other and bowl games, and crown a champ. Will I watch, probably, but that is shutting out anyone not affiliated with a school. Average joe of any team on the outside probably wont care about the Big2. It will be the shinny new thing but will fade.
Let em do whatever, I wont care. Their are more outside schools than not.