1. The Balfour Declaration was made by the British before they controlled Eretz Yisroel. The Ottomans were still in charge at the time. It would have been no different than if Russia had declared support for a homeland. The declaration doesn’t help regarding the Shavuous.
2. By time the British took over Eretz Yisroel from the Ottomans, the British no longer supported establishing a Jewish homeland. So that also demonstrates no support from the Goyim for a Jewish state.
3. During British rule Zionist terrorists were murdering British soldiers to pressure the British to allow a Jewish state. This demonstrates they were already violating the Shavuous by fighting the Goyim, who opposed their state, to form a state.
4. The UN never controlled Eretz Yisroel. The only reason the UN had a vote on whether to authorize a Jewish state, was because the Zionist terrorized the British into abandoning Eretz Yisroel. And local Goyim of Palestine opposed the formation of a Jewish state.
So even though in my first comment on this thread I explained many multiple reasons why the Shavuous were not, and could not be, abrogated, even on the Zionists on convoluted terms trying to farnagle an excuse why the Shavuous could be ignored due to the Goyim being okay with it, it doesn’t work and falls squarely flat on its face.