It's curious to see who is getting hot under the collar about this.

The UN had (and has) power to admit members. In my view it should admit Palestine as a member and sufficient reason is the need to be even-handed. It does not have the right to give away the land of others. It is not a legitimate world government.

I have not said that the treaties ending WW1 were not valid as between the parties. All I have said is that the parties to them had no right to give away the land of others. They could of course renounce their own claims to lands.

Thus the appointment of the UK to govern the mandated territories conferred no right to do so.

Thus the 1947/8 disposition also conferred no right to give away the land of others. Note "others".