"I'll vote for the person who will most leave me sovereign"
I think switching "alone" to "sovereign" is closer to what you're thinking.
Discussion
That’s fair, minor counterpoint is that my sovereignty is up to me to the extent I could volunteer to be a slave, I just want a government that doesn’t add stumbling blocks to my path, if any
It's funny you mention that. While writing the original reply, I didn't love the "who will most leave me", because it assumes the third party gives you allowance to be sovereign, which kinda doesn't make sense.
We both probably align closer to: "I'll vote for the person who will respect my sovereignty."
I’m good with this revision! A+. This illustrates how all aspiring writers need good editors.