to root out = to declare that nations should be rooted out, &c. Figure of speech Metonymy (of Subject). Note also the Figure of speech Polyonymia, for emphasis.
and to pull down, and to destroy, and to throw down, &c. Note the Figure of speech Polysyndeton, and see note above.
build, and to plant = to declare that others (Israel and Judah) should be restored. Compare Eze_17:22-24. A prophecy still future.