I DON"T!! 
The airport (Paine Field) is currently chartered for general aviation (small private planes) & the Manufacturing of New Aircraft.  That is a far cry from a COMMERCIAL AIRPORT with fully loaded passenger Jets going in & out at all hours. When I moved here (30 years ago), I purposely chose a location that was quiet & rural (an occasional fly over is not a problem), with the understanding that Paine Field would NEVER become a Commercial Airport.  I purposely did not choose to live in the flight path of SeaTac as I did not want the problems that always come with it. I do STRONGLY OBJECT to not having any say (VOTE) in the matter for the supposed benefit of a very few people.  Yes, I know that the area has grown, but we all have to be very careful what form that growth takes. Here is a SUGGESTION: Have the supporters of this "change" go live next to SeaTac (in the flight path) for a month and then ask them how they feel about changing this area (over time) into the same thing!!