Can you provide a link for that full quoted text. I have found one here and it does not contain this last paragraph.
It does however contain this
Aaron David Miller, who served as an adviser on Middle East issues to Democratic and Republican administrations, said Biden’s recent emphasis on a two-state solution was an “aspirational talking point.”
“The odds are very, very low,” he said. “It’s essentially mission impossible.”
https://www.pbs.org/newshour/world/biden-pushes-mideast-leaders-to-consider-two-state-solution-after-israel-hamas-war-ends