The gang of armed thugs heading to confront antifa supporters in a bar were just going for a stroll, antifa are the ones who turn up looking for trouble.
You do understand that two things could both be correct here?
(1) A particular right-wing group turned up to attack antifa.
(2) Antifa often turn up to attack right-wing groups.
Both of those things are compatible yes?
Not only are they compatible, but it wouldn't even be a surprise.
If antifa attacks the right-wing, isn't it very likely that some right-wing groups will want to attack them back?
This is another thing about the use of political violence: when you use it, it could just encourage more violence in response.
(To be clear, I don't know if they were real antifa at that site or what the real details are.)
The storming of the Capitol didn't happen, antifa are the ones who want to destroy democracy.
Again, two things can both be true here.
(1) A right-wing protest turned violent, or was always planned by some to be violent.
(2) Antifa are anti-democratic.
There isn't any tension between those two things being correct.