They didn't "fight back". They killed before any military action was taken.
It was a violent attack. It was an actual attempt to insurgency, rather than the Jan 6 revolt.

Only after the rioters killed over a 100 soldiers was military action taken.
Only after scores of soldiers dead,
did the military enter the street where the killings took place and did Chinese military kill the insurgents that killed their soldiers.
And during this time the protesters from the square were evacuated due to heavy violence from this one group of rioters.

What happened during Jan 6 was that the rioters all left the Capitol when the military arrived.
The rioters of 1989 did not.

The Jan 6 insurgents were more peaceful than the 1989 Tianenmen Square insurgents.

[–] WolfLink@sh.itjust.works 0 points 1 day ago

Only after the rioters killed over a 100 soldiers was military action taken.
Only after scores of soldiers dead,
did the military enter the street where the killings took place and did Chinese military kill the insurgents that killed their soldiers.

Source? Because that doesn’t match up with what I’ve read, especially the numbers.