Yes; negative outside; positive inside. I hope that there may be a way to test this hypothesis. Your idea is good. Maybe it could be real.

One thing good is that we basically agree on the electrical universe. You have a single universe. I have a triple universe of positive, negative and neutral.

I do not have the fancy universe of string theory. The first time I saw their pictures I laughed. However it helped me to understand my simple universe where the distances between all the universes are only the plank radius.

What I like about my universe is that the plus universe and the minus universe form a battery. Thus there is a constant electric field between the positive and negative universe. We live in the middle.

Your bipolar photons can still exist in my triple universe. The plus side of your photon is in one universe and the negative side is in the negative universe. Therefore your electron has the negative universe on the outside and the positive universe on the inside.

Then we end up with a little bit of string theory for your photons. thee is a lot of action at the plank radius. many dimensions are involved. It looks simple in your diagrams but in reality the interactions occur at very tiny distances.

Anyway consider your photons to be part of the plus and minus universe and consider that a little bit of string theory can be added to your model. Then there will be only a little difference between us.