I do not have to.
You said “the bible says” but now there is backtracking.
First of all, the bible did not say it.
Secondly, your interpretation ignores very salient aspects of the prophecy such as the beast coming out of 10 nations, not 10 nations coming out of the beast.
Bible interpretation requires one to stick with what the bible actually says as the starting point, and then postulate further. Postulating first and then imposing that viewpoint blithely onto what the bible actually says is invalid.
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7After this I saw in the night visions, and behold a fourth beast, dreadful and terrible, and strong exceedingly; and it had great iron teeth: it devoured and brake in pieces, and stamped the residue with the feet of it: and it was diverse from all the beasts that were before it; and it had ten horns.
8I considered the horns, and, behold, there came up among them another little horn, before whom there were three of the first horns plucked up by the roots: and, behold, in this horn were eyes like the eyes of man, and a mouth speaking great things.
The little horn comes out of the 4th beast. It comes up AMONG the 10 horns, THAT ALSO COME OUT OF THE 4TH BEAST. Nowhere does it say that any BEAST comes out of 10 nations. NOT THERE. Sounds like you are the one "blithely postulating and imposing"