I see we're still getting mileage out of the whole "population/land" duality, huh? The combined population of all the counties that have voted to leave so far is 205,000 (the red counties, not the grey and green, which have not voted so far), which, assuming the entire population voted to leave, comes out to just 5% of the population, not 50%. For the record, that's not even 50% the population of Multnomah County (the county that has Portland in it).
To be clear -- I have no particular opinion either way about whether counties should be able to switch states like free electrons in metal. In fact, I might lean towards it. I just don't see the need to repeatedly use the lamest, laziest, and cheapest rhetorical techniques in these arguments. For a group that loves to talk about virtue signaling, they sure like to "arguing-in-bad-faith" signal.