This could be Purim Torah, I guess.
In truth, though, it’s quite sad how misguided and against gedolim so many of our brethren are in their following of this avoda zara of Zionism.
It would make much more sense, objectively and halachicly speaking, for those who “celebrate” this day, to add selichos (for celebrating Israel’s Independence Day) to the b”h”b selichos rather than to say Hallel for that Avoda Zara’s Independence Day.
Then, if the Yetzer HaRa for A”Z (of Zionism) would continue to leave them alone, they could stop celebrating, CH”V, this tragic day which was really just one more stage in the spilling of so much blood of so many innocent Jews, R”L L”A Hashem Yishmor, in the Zionists’ tragic and doomed endless pursuit of this idolatry of their State at all costs and against the warnings and teachings of so many gedolim and so obviously (even more so in hindsight) kineged the ratzon of Hashem.
So the only question would seem to be which selichos to say first, those for Israel’s Independence day or those for, lihavdil, B”H”B. And since all of Klal Yisrael says the ones for B”H”B, it would seem that those are the ones recited first.
This part is not Purim Torah, and is just conjecture.
It is hard for modern man to understand the logic and reasoning of how so many people worshipped the baal and, even worse, the molech, casting their children into flames in service of this latter idol. The whole concept makes no sense, given the time, money, blood, sweat and tears it takes to raise a child. To then give that over to an idol who they knew quite well had no real power would seem to require delusion and hallucination.
Yet as Zionism becomes ever more ridiculous due to its many, many disasters since even before it founded its state at the price of enormous amounts of Jewish blood, while its adherents remain as faithful as ever (or even more faithful) to Zionism, it becomes more understandable how people could have worshipped the molech.
After all, people today, especially non-“cavemen” MO, who are surely more “modern” and sophisticated than those at the time of chazal, uproot their entire existence to live under the yoke of anti-Torah heretics in the holy land and also send their children to the front-lines in the IDF as a religious observance to fight for this idol of Zionism, when history has already amply demonstrated that this idol, too, is powerless. As a gadol presciently stated at its founding, the State of Israel is the Satan’s greatest triumph since the Egel HaZahav. In hindsight, to those not blinded by this idol, it is plain to see.