My prediction if that happens:
Big Sis and the head of the FAA announce federal lawsuits to overturn the Texas law and get an injunction. If Texas wins in the courts, the FAA threatens to stop manning facilities in Texas and forbidding commercial airlines from operating from Texas to the rest of the US.
I'll wager a case of Bass Ale on it.
We can get private - real professionals- to do airport security in Texas as all airports should be doing in light of TSA’s incompetence and abuse of the public.