Read the book by Robert A. Heinlein - it's far more subtle.
The fundamental misunderstanding in the movie of the source material, comes across as intentionally misleading given that the original story espouses a radically liberal (albeit militaristic) worldview; a society based on merit and service to society where those who serve and contribute are given a voice in how society is shaped.
The story is a scathing critique of communism (the bugs represent a communist society). Certain plot points in the movie have been interpreted in such a way that paints the Federation as the aggressor, when in fact it was the bugs who made a pre-emptive strike against Earth in the book.