Washington Times is indeed fake news. But not for the right, as your 2003 article implies. The vast majority of news is either left leaning or hard left. I also do not find the Southern Poverty Law Center to be any sort of authority on who is left or right, since they have ignored left-wing MURDER on their terrorist map and show no left wing violence at all, while advocating for several left wing causes. I posted the Washington Times as it was the first to come up regarding the FBI comments. Since you can find the same comments here:

https://www.cbs17.com/news/national-news/fbi-director-says-antifa-is-an-ideology-not-an-organization/

https://www.newsmax.com/politics/fbi-wray-antifa/2020/09/25/id/988920/

https://timesofindia.indiatimes.com/world/us/fbi-director-says-antifa-is-an-ideology-not-an-organization/articleshow/78186479.cms

https://www.allsides.com/news/2020-09-17-1059/fbi-antifa-real-thing

https://www.pressdemocrat.com/article/news/fbi-director-says-antifa-is-an-ideology-not-an-organization/

https://www.centerforsecuritypolicy.org/2020/09/18/fbi-director-faces-scrutiny-over-refusal-to-name-antifa-as-organization/

https://www.abc27.com/news/us-world/politics/fbi-director-says-antifa-is-an-ideology-not-an-organization/

https://www.news10.com/news/national/fbi-director-says-antifa-is-an-ideology-not-an-organization/

https://www.pbs.org/newshour/politics/watch-live-fbi-director-wray-national-security-officials-testify-on-homeland-security-threats

https://www.13newsnow.com/article/news/nation-world/fbi-director-says-antifa-is-an-ideology-not-an-organization/507-5da2ec8e-37c4-44d5-ba63-9a30cf72940b

And more, I figured you would not have a problem with the quote.

Antifa is a specific name for a type of group that does not exist.

I believe we have now shown this to be false, as we have both congressional testimony saying otherwise and several examples of smaller groups.

This is local, and not powerful nationally

I will just quote the FBI director. '"Let me try to be as clear as I can about that: antifa is a real thing, it is not a fiction,” Wray declared, Newsweek reported. “We have seen organized tactical activity at the local regional level.

"We have seen antifa adherence coalescing and working together in what I would describe as small groups and nodes," Wray said, adding the bureau is conducting multiple investigations "into some anarchist violent extremists, some of whom operate through these nodes."

"We're going to be looking — and we have been looking — at their funding, their tactics, their logistics, their supply chains and we're going to pursue all available charges."

Wray added that the fact the FBI has found locally organized activity does not "diminish how serious and dangerous it is."

"We don't view how nationally organized something is as a proxy for how dangerous it is."'

There aren't any significant 'antifa' groups in the US, by contrast with the KKK and similar groups.

Naturally, Portland has a group that's happy to call themselves 'antifa: https://rosecityantifa.org/ This is where hippies go to die.

This comment shows that you recognize there is a significant 'antifa' group in the US.

Anti-Fascist News looks like an informative site, AND NOT necessarily organizing for 'antfa'

The goalpost was originally 'provide appropriate evidence of a substantial 'antifa' group (without using obvious right-wing propaganda websites)', not prove they are organizing online. That is known as moving the goalposts. I believe that your term 'substantial' is subjective, but the fact that a loose organization is substantial enough to have multiple websites of different chapters and even multiple informative sites dedicated to information FOR them, I believe sufficient proof that such is a widespread issue. In fact, the proof that such ideology has been surfacing now in other countries like Canada, is proof that such is not just national, but an international issue.

https://englishnews.org/2020/06/03/what-is-antifa-the-international-terrorist-organization-that-has-infiltrated-government-media-education/

This appears to be a proper "anti-fascist" news and fund raigins site, though it was founded as an anti-racist site, and does not necessarily organize antifa groups: https://torchantifa.org/history

https://torchantifa.org/chapters/