“could signal the end of decades of American support for the establishment of”

There was never really any such support for anything of the sort, and this only continues today because the US uses its veto to prevent anyone from holding Israel accountable for its crimes.

“stances on the far-right of Israel’s political spectrum, well beyond those of Prime Minister Benjamin Netanyahu”

No, these are in line with Netanyahu, who is a far to the right as any Israeli politician, and has perhaps done more to scuttle peace than anyone.

He has vowed "there will be no Palestinian state on my watch", and has been condemned by his own senior military staff for provoking violence.

“the Israeli-Palestinian conflict”

Israel’s military, political, and economic campaign to deny the Palestinians their right to self determination and steal their land and resources, deliberately-perpetuated in brazen defiance of the UN and systemic violation of the very laws intended to prevent such an injustice.