Context: The Reichstag Fire is widely believed to have been a false flag and was the pretext Nazis used to persecute all German communists as “Enemies of the nation”
This dude is literally implying that
A: The shooter was a fellow fascist,
B: We should follow the example of the Nazis, or
C: Both of the above
That’s the historic consensus. It’s unknown whether it was a false flag and possibly unknowable until further historic documents are discovered. Neither option is so implausible as to be ruled out. That it played into the nazis cards because they were able to (ab)use this event as a stepping stone to consolidating power is what we know.