And neither does a mileage based tax! What a coincidence! No one is required to report their mileage for taxes, and there's no infrastructure to handle the case where someone drives outside of the state.
You're apparently unfamiliar with the logistics and politics surrounding the particular crossing that I spoke of.
No politician, sane or not, would propose putting even a voluntary border stop at that particular crossing without also solving the current congestion issues in the area - which requires replacing the bridge, and that is currently DOA because of the politics involved.
If you want to see a border checkpoint, drive farther south to California where you'll see agricultural check stations.
I'm well aware of the border stops in California for the purpose of enforcing California laws. Know of any operated by Oregon? Or operated by anyone else for the purpose of enforcing Oregon law?