Texas and Oklahoma joining the SEC is like Missouri joining, they gonna get the fuqk beat out of them every weekend, not gonna happen.
They take their beatings; and collect BIG checks. And; once or twice a decade (Missouri) they have a good season. Being in the SEC will help Texas and Oklahoma; and the SEC will put 3-4 teams in the 12 team playoff every year. More $$$ to spread around to the conference members. More visibility for the NIL deals for the players.
Basic economy of scale