Red line, airport. Not that hard.
No no, it is for him. He's a guy so he's militantly aware of his environment but he only runs on like 12KHz. Easy slow words for him or he'll get lost bad.
From Union Amtrak Station, South to Everett St
East to 1st Ave
Board the MAX Red Line and take it East bound to the last stop: PDX. There should be no lapse in the route schedule that warrants any note from me. Get to the station when you get there. Expect to get into the airport in about 45 minutes to an hour after you board. I would walk from Union Station to 1st & Everett but that's because I'm a hardass that's used to it. If your luggage is that heavy I guess you can wait for buses.