The "Palestinians" don't want a state. They want the Jews gone or, if possible, dead. Everything else you hear about it is complete bullshit.
The Palestinians have rejected a state of their own more times than any national movement in modern history.
1937 — Peel: a Jewish state on a sliver of the coast. Arab leadership said no and turned back to violence.
1947 — UN partition plan: an Arab state beside a Jewish state. The Arab Higher Committee said no, started a civil war, and then five Arab armies invaded.
2000 — Camp David: a Palestinian state with a capital in eastern Jerusalem. Arafat walked, proposed no counteroffer, and launched the Second Intifada.
2001 — Clinton Parameters: a Palestinian state with a capital in eastern Jerusalem, 96% of the "West Bank" plus 4% of Israel, all of Gaza and a connecting corridor. Arafat said no as the Second Intifada raged.
2008 — Olmert: 94% of the “West Bank” plus land swaps to make up for the other 6%, a capital in East Jerusalem, and the Old City under an international committee. The PA, this time under Abbas, never even bothered to answer.
2020 — Trump’s plan: a Palestinian state, a capital in a part of East Jerusalem, and $50 billion in economic aid to build their country. Abbas called it the “slap of the century” in 2018, two years before the text existed. On the day it was released, he said “a thousand times no.” He refused Trump’s call and refused to even take a copy.
They do not keep saying no because the borders were wrong. They keep saying no because the real demand is not a state beside Israel. It is a state instead of Israel.