There have already been a handful of companies that left the state because of the minimum wage hike.  There will be a handful of companies that re-organize as a b-corp, or split apart divisions of the company into smaller incomes to avoid the tax, or leave the state to avoid the tax increase. I see half a dozen nearby states with lower corporate income tax.

It will probably pass, because Oregon is so liberal - which means as costs rise to compensate for higher minimum wage - costs will also rise to compensate for the extra tax.

You think rents are high right now? Wait till costs of everything in oregon continue to rise!