I am not from Portland, but the rest of the world did not get a great picture of the city during the last two or three months (yes, the word "shithole" was dropped a few times). I do not remember any images of businesses being threatened by cops, but what do I know sitting at the other end of the world.
Where are you from and which media outlets have you been consuming? From a local perspective, the national attempts to portray the protests are rather futile, since the area under contention is only about two blocks large [0] and it's not on most folks' daily walks. Even only a few blocks away, Portland continues life as normal [3], or as normal as COVID-19 will let us be [4].
To follow up on the grandparent's point, the local and imported police are not really doing their job when it comes to breaking up street fights [1] and are trying to pin blame on recently-elected politicians [2]. We're not a shithole just because the fascists have come to town to have fights, and definitely not just because some of those fascists are employed by the federal government.
So, yeah, where are you from and what have you heard? It sounds like you don't know much of anything of our local situation, from "the other end of the world", although Oregon's antipode is in the middle of the Indian Ocean and you probably aren't quite so remote.
I am from Europe and one thing that I have heard is that your new DA is buddy with Antifa and announced that only major violations will get punished. This is basically a written invitation to rioters and looters to keep going. Oh, and of course I saw the Adam Haner scene that looked like a beheading from Irak until he was kicked in the head by BLM "Security", which then reminded me more of the curb stomping scene from American History X. Also, I did not fail to noticed that your mayor decided to completely ignore this incident. So yeah, from my narrow view, Portland did not look like the posterchild of civilization recently.
On one hand, yes, antifascists like myself intentionally voted for our new DA because we expected him to be not just tough on crime, but also tough on cops. On the other hand, though, the other candidate for DA was explicitly pro-policing and there's just not an appetite for more police in Portland right now.
The current mayor, Wheeler, is trying to walk a middle path. He might not survive re-election, as there are multiple candidates to his left who have indicated that they are more willing to tell the police to go home.
I find it telling that you cherry-pick which street fights reflect poorly on Portland. We have culturally been less and less accepting of street fascists over the past few years. And not all of us are violent, either; I've had heated but peaceful discussions with them up until last year, when the violence became an inevitable part of their platform.
Once the travel ban is lifted and the USA is safe to travel to, feel free to actually come and see for yourself what popular antifascism looks like.