Starlink is not competition for cable companies, unfortunately. Any area dense enough for cable is too dense for Starlink. There may be more competition in wireless carriers than wired ISPs, but that's not saying much. It's still not nearly the competitive market it should be especially with even more consolidation happening recently.
As for payments, the Visa/MC/Amex hegemony will get challenged by crypto. Ethereum's scalability is rapidly approaching Visa scale and with stablecoins and DeFi skyrocketing in popularity, it's going to be an interesting thing to watch.