As designed, ownership of stake allows voting with that stake's weight on where the inflation goes, not whether it happens. I think that's a good design.
I am not surprised to see a that a large stakeholder, who does not participate in creation or consumption of creative content, wants to decrease inflation to those who do. That's simple game theory and economics, since as long as inflation outpaces the growth of a user's stake, that user's share of the total value of the platform is falling. To generalise that concept, as long as a user is not receiving over 50% of total inflation, that user stands to gain (at least from a pure numbers perspective) by inflation being limited or stopped as a whole.
I disagree with the proposal, though, and I hope others do too, not only because as a smaller stakeholder it would negatively impact me, but also because this platform is far from just a zero-sum numbers game and I do not believe anyone treating it like one deserves to be rewarded for that.
Anyone who wants to do so is always free to create posts with beneficiaries set to @null and vote them.
If you're passive and very efficient at curation (which is pretty hard to consistently get more rewards out than you put in) you could grow your account faster than the average inflation per account. But even if you're super efficient if someone decides to flag stuff you upvoted your efficiency goes way down.
I don't really agree that downvoting should be free to do.