Boeing will not leave the Seattle area for a long, long time. Take a look at all the orders for 737. The plan is to ramp up production to 43 a month fairly soon, with a backlog of orders.
Boeing IS a great place to work, regardless of whether it's in WA or not. I know, I work for them. (Not in WA either) The pay is great and the benefits are great as well.
It's ironic that I turned down the 'opportunity' to go fly for a regional carrier a few years ago instead took a job back at Boeing. (Yes, been thru two layoffs with Boeing). I make twice as much more than any first year FO's regional, and have great medical benefits for my family as well a company pension and matching 401K as well as college tuition re-imbursement which I am currently using for my M.A.S.
Also ironic, I do NOT and have NEVER worked for a Union shop and hope it remains that way.
Not a perfect company for sure, but look at all the recent orders and news for outlooks on commercial aircraft. I seem to remember a major automobile maker having "gas pedal" issues a few years ago.

Don't sweat the small stuff, and don't expect Boeing to leave WA.