The state of Israel contradicts the Jewish belief that the messiah will come and afterwards all the Jews will return to the Holy Land. They should only return there under the messiah's leadership and not before.
Have a look at Isaiah Chapter 11 which begins with a description of the messiah, and then says (verse 12), "And He (God) will lift up a banner to the nations, and He will gather in the scattered of Israel, and the diaspora of Judah He will gather from the four corners of the earth."
Deuteronomy 30:3, Isaiah 27:12, 40:9, 41:14, 43:5-6, 52:12, 54:7, 56:8, Jeremiah 16:15, 23:3, 30:10, 31:9, 33:7, Ezekiel 11:17, 20:34, 28:25, 34:13, 37:21, 36:24. Hosea 1:7, Micah 2:12, Zachariah 4:6, 8:7, Psalms 53:7, 106:47.
Above are just some of the verses in the Bible that say clearly, God through the Messiah will be the one Who redeems the Jewish people from exile and gathers them back to Israel, that includes Deuteronomy 30.
Rabbi Isaac Abarbanel from the 16th century, one of the most important Scriptural commentators, says regarding the quotation from Deut. 30:3,
"We see from here that God Himself will return our captives, and it will not be like the beginning of the Second Temple era, when the Jews returned to their land by the permission of Cyrus, king of Persia."
Peace