Here is my 2 cents on the whole thing.
For one, lets start by saying no one should complain about Romar landing Michael Porter Jr. Only a fool would complain about the Huskies landing a top 3 player. When is the last time Husky Football has done that? There is a decent chance he is the #1 ranked player in his class by next year. He is that good. This isn't Tony Wroten or Spencer Hawes, this is more like Jabari Parker, Kevin Durant or Andrew Wiggins.
I understand the criticism about the one-and-done, but it's easier said than done. Put yourself in Romar's shoes, if you know you can get a one-and-done player like Fultz or Porter Jr, you are going to go after them. As nice as the really good 4-year kids are, everyone wants the impact freshman. There is a reason why every coach would jump at the chance at getting one of these kids. While we aren't Kentucky who can land 4-5 of these kids in one year, Romar can work on building 4-year players around the one-and-dones. Throw last year out the window, we were too young. Next year Fultz will be surrounded by some experience, and two years from now, assuming we land Porter Jr, he will be surrounded by even more experineced players (by then Thybulle, Dickerson, Timmins, etc. will all be upper-classmen).
And to answer your question Tical, he plays at a catholic school now, so there is a good chance he will do the same when his family moves to Seattle. Maybe Eastside Catholic? If he did join Garfield, there is a good chance they'd be the #1 team in the nation with Dajeon Davis and Nowell who are already highly recruited D1 players. I'm sure he will join Seattle Rotary which could bring the title back to Seattle.