What you describe here is the kamikaze-method which I wouldn't recommend.
You as a node operator can do much more than just the existential "to be or not to be":


3) You can start mining yourself, and you will not just strengthen the system (and slightly weaken the rogue miners power) and earn SPR by doing this, but also influence the percentage (which means more profit not just for your but everybodies servicenode!).
We will stay a solo-mining coin for as long as possible (forever). So we are going to need a steady increasing number of solo-miners!
This is probably one of the more important reasons for introducing such a voting system (which incentivizes people to solo-mine)!
It might also create additional demand for more optimized mining software (which you don't need to share with the bad guys)

(Also: you as a "servicenode miner" are never alone. Talk to other node operators, they will be plenty and they will have the same interests as you. Figure it out! Create a union or whatever!
We see similar things happen with other coins.)


4) You can influence the miners directly. It's not like they are living on another planet! Talk to them, negotiate with them... maybe give them a servicenode as present?
Maybe share profits? Or operate a shared ownership servicenode? Whatever you come up with... keep conspiring and colluding until you reach your goal.
And if all else fails, return to 3).

What do I know...
I propose this system EXACTLY because I know that the collective wisdom will come up with solutions I would never come up with by myself.

And I am absolutely disgusted by a system where a king dev (or a few top "early" investors who own millions of SPR) get to decide the percentage according to their whims, which ofcourse will be:
...more, More, MORE! ... but never less, hm?   Why not? With our voting system sometimes it will make sense to reduce the percentage again. It will be allowed to fluctuate.)

------

Sorry it's getting very late where I am, I'll answer in more detail later today, thanks again!