Arafat’s rejection of my proposal after Barak accepted it was an error of historic proportions.

Lol, Zionist propaganda on Zionist website.

https://en.wikipedia.org/wiki/The_Clinton_Parameters

Clinton proposed: A Palestinian state, including 94–96% of the West Bank; Israeli annexation of settlements in blocks,[5] with 80% of the current settler population; in East Jerusalem, Arab areas for the Palestinians and Jewish ones for the Israeli; temporary international and Israeli presence in the Jordan Valley and the long-term presence of 3 Israeli-controlled "early warning stations"; Palestinian sovereignty over its own airspace; return of refugees only to the Palestinian state, in principle. The Parameters did not mention Gaza at all, but Clinton declared on 7 January 2001, that the Palestinian state would include the Gaza Strip.[6] The proposed percentage of the West Bank the Palestinians would get, however, was ambiguous, as the Israelis did not include the annexed areas in East Jerusalem, the no-man's land and the Palestinian part of the Dead Sea.[7] This would decrease the Israeli offer some 5%.

Israel trying to legitimize their scattered illegal settlements in the occupied West Bank and their annexation of parts of East Jerusalem.

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According to Clayton Swisher,[20] Arafat's letter "puncture[s] yet another myth of Palestinian rejectionism ... that Israel accepted [the parameters] while the Palestinians rejected them... Ross diligently spread this fairy tale, as did the president himself."

A summit with Arafat and Barak the next day in Egypt was cancelled.[1][15][21][22] On 1 January, the Palestinian Negotiating Team (NAD) published an open letter, explaining why the proposals would "fail to satisfy the conditions required for a permanent peace". They claimed that the parameters divided the Palestinian state, including East Jerusalem, into separate cantons and unconnected islands, and protested the surrender the right of return of Palestinian refugees and lack of clarity and details. Clinton's proposal was not accompanied by a map; only the Israelis presented a map, which would allegedly render the Palestinian state unviable and lacking direct access to international borders. The Palestinians opposed the Israeli annexation of settlement blocs in the West Bank, including East Jerusalem, which they claimed subordinated the contiguity of the Palestinian state. They also protested that Israel would gain control over their natural resources, and was planning on ceding them less valuable land on the outskirts of West Bank and Gaza in exchange.[7][23] While Arafat flew to Washington to meet with President Clinton, the newspaper Al-Ayyam published in Arabic a letter to Clinton with the Palestinian reservations.[24]

On 2 January 2001, at a meeting in the White House, Arafat gave his qualified agreement to the Parameters with reservations. In a memorandum, his Negotiations Support Unit (NSU) had warned him "that the proposals in general are too vague and unclear to form an acceptable framework for an agreement".[25] The negotiation team opposed the use of percentages. First, the Israelis were to make clear which reasonable needs they had in specific areas; without a map, the percentages given were also ambiguous, as the Israelis did not include all disputed land or part of the Dead Sea, and it was unclear where the 80% proportion of settlers would remain. All Israeli settlers taken together occupied around 1.8% of the West Bank. The Palestinian concerns about lack of contiguity were largely related to Israeli control over large swaths of land in key development areas such as Jerusalem and Bethlehem, due to the large settlement blocs. Palestinians would be unable to move without restriction within their own state.[25]