Yes, that is accurate, actually, because it still has mass whether its composition is liquid, gas, or solid. It’s purely theoretical, obviously, since you’re talking about sucking up something many times bigger than the Earth itself, but, you can consider the same scenario in other cases… hollowing out the moon, cutting off half of the Earth, etc…
I think we need to consider that, while we can, at best, with our present miniscule powers, fuck up a planet itself (i.e. climate change, pollution, etc.), we don’t presently have and couldn’t really conceive of ever creating something that could do something cataclysmic on a galactic, inter-planetary level. Stars, planets, galaxies, etc. . . . . they’re so fucking big and have been floating around in space for millions and billions of years. Our solar system and even our galaxy is basically a tiny fart cloud in a vast endless sea of space. It’s STABLE . . . . but stable in a very relative manner. That is, our conceivable existence (thousands, perhaps even a million years) doesn’t include a probability of something radical occurring that would effect the balance that everything is held in right now.
I think even if you could potentially steal a massive portion of Jupiter’s mass, you’re not making it disappear. You’re just relocating it. So Jupiter’s gravity could certainly be impacted, but I think the solar system itself is still such a tiny speck of nothing in a giant soup that it kind of adjusts to itself.
Sorry, that’s probably way too much verbiage.
I think a good summation in the realm of reality would also be to say that, even in a world where you created something to drain large amounts of gas from Jupiter, it would never be at a level to be consequential . . . and to get to such a level, you’d be talking about an inconceivable timeline.
Talking about this stuff, I just had a funny flashback to my childhood, actually. I used to be really obsessed with digging to the center of the Earth (yes, there was a book and movie many years ago, hahaha) and started many times. Without the giant drill we never got too far. Best we ever did was probably 4 or 5 feet.