The text admittedly doesn't give us any reason to think V considered the star-lifting interpretation. It also gives us no reason to think he would care. If the prophecy has two possible interpretations (each of which may be genuinely possible, depending on V's actions) and he has no real interest in a star-lifting civilization but great fear of his own death, then he should rationally try to prevent the latter.

The real question is why he thought he could prevent the prophecy from happening in any form. And I'm willing to accept that as in-story knowledge from Salazar and other sources, plus ignorance or incomplete knowledge of Dumbledore's role. (The latter seems interesting in that he knew D had knowledge of the future - maybe he failed to consider that D might be trying to protect everyone except the two of them? Or maybe this was just arrogance.)