Both Oregon and Washington are at-will states, and have the same laws with the same kind of work cultures -- you're a cog in a system, and if you start grinding or upsetting the status quo in some way, the candidate pool in this region is strong enough, they'll replace you. However, the expectation still remains that when you choose to exercise your same rights under at-will that you give two weeks notice. Can't say any employer is going to give an employee that same courtesy when letting them go. Not to mention if you're salaried, you might as well accept that your role is nothing more than indentured servitude branded as capitalism (to clarify, this may not be at all companies, but definitely is a strong cultural trait I've seen at the ones I've worked at).
All that being said, the PNW is much prettier than many areas of Texas, and while natives are hostile towards transplants, the quality of life is leaps and bounds better than that horrendous mass of land called the Lone Star State.