Closing the straits is not a reasonable justification for war. Would Cuba be justified in invading or bombing the US under your rationale?
That's a moral judgement and subjective to each individual.
You said "Israel started the 6-day war in 1967 that led to the present occupation."
Which I said was inaccurate due to the fact that Egypt shutdown the Strait of Tiran to Israel. Egypt started the war.