OT for a minute and we can discuss this in a separate thread, but Israel's real objectives at the Oslo negotiations 1993 were to transfer the security/administrative burden of the Occupation to a native Palestinian unit. The PLO, then in exile in Tunis and desperate to return , screwed up and accepted the very vague Israeli promises and then discovered later what the Israelis actually had meant. This led to the second Intifada in which Israel enforced its vision by beating the crap out of the Palestinians and killing most of the dissenting Palestinian leadership, including Arafat.
So PA that exists now is working as designed.