While I haven't lived in Portland, when I visited in 2019 I was like, this is a larger Santa Cruz. And I have lived in Santa Cruz so I can make some extrapolations:

* Stifling lack of local prospects; in SC, the majority of jobs were "over the hill" (SJ/SV) making it a bedroom community. Portland has a little more going on for itself but it doesn't have the strong jobs pull of a city like Austin, which Portland has often been compared to in the past.

* Isolated city. If you leave Portland you reach rural farmland relatively quickly compared to larger US metros, which have a cluster of coties SC as noted has some distance to the city, but also proximity to farms east around Watsonville. SC being a college town with a major university contributes to the difference, bringing in a wider young demographic. In both cases this contrast and close proximity enables a dynamic of "city vs country", which exploded in Portland in 2020's protests with aggressive displays and a fatal shooting.

* Ethno-nationalist legacy: Portland was designed to be whites-first and only reversed on that relatively recently. California harbors some of these sentiments, but mostly not as strongly. It adds a layer to the culture that, while not always blatancy obvious, makes it feel more insular.