@Neville, ^, Ohr Sameach, Avira, and I all seem to agree that there is no problem at the Balfour time. Ohr Sameach of course is the most significant here, not just because he is the gadol between us, but he wrote that at the time.
Now, Avira nd you seem to make a point of “making a state”. I understand your emotions here – this is a major event that you do not like. But this is a very Zionist view, pardon me. Why is a “state” shaich to anything in halocho?
Do the Oaths say anything about a state? or about establishing malchus? having elections? building a Knesset building? Waiving a flag? I think not, they are only talking about arriving to EY. Please correct me if I missed the fine print.