The problem is that they did not receive their land in "a single day" A single day was only when a treaty was signed. They had been working at that seriously since the late 1800's early 1900's. So that is a failed prophecy.
Not a problem and it happened TWICE or as God says in the Bible "I'll do it a second time". The first time he took a nation of people out of an existing nation--the Exodus!
And yes, we both already knew--I'm Jewish as you'll recall--that Zionists were keen since the 1800's--but the Holocaust moved things forward greatly--arguably the Shoah itself was predicted by MOSES thousands of years earlier (!)--and then the United Nations voted to make Israel officially Israel. May 13, 1948 it wasn't, May 14, 1948 it WAS and because it truly WAS that day, the Arab nations and terrorist organizations immediately invaded, ALL per prophecy. THAT's why they invaded!
They received international recognition of their land, and therefore titular and treaty rights were legally enforced, in a DAY. You have the (dubious, if I may so respectfully) distinction of being the first believer or skeptic ever to question this fact of prophecy.
And since you are an ardent skeptic, I've no desire to defend 60 or so prophecies one at a time that Israel has fulfilled--verifiable via printed and film media--since 1948 AD--but as the Bible says, at least we know enough via conscience and other knowledge that there is no excuse for rejecting God's salvation.