The father-of-four, an IT worker, failed in a legal application to try to get the wounding charges thrown out on the grounds of prejudicial media coverage.
The coverage included details of allegations related to seven arrests made by German authorities, but Judge George Lubega ruled the reports did not pose a high risk of prejudice to Alfatih’s trial.
During a two-week trial at Birmingham Crown Court the jury was shown video footage of Alfatih lashing out with a knife at the broken window of a van on 14 October last year.
Bailiff Kevin Bucknall was left with cuts to his head and required hospital treatment, but the defendant had pleaded not guilty on the grounds of self-defence.
Alfatih told jurors it happened a day after he learned one of his brothers had been killed in Gaza.
He also said while giving evidence that traumatic experiences in his past included being shot and injured on two different occasions.
“I just want to be as honest as I can,” he told the jury.
“I don’t think I was even in my full mind. I didn’t intend anything other than him moving away.
“I wasn’t anything more than terrified.”
Defence barrister Kate O’Raghallaigh said Alfatih had a heightened perception of danger, triggered by fear and desperation he had previously experienced.
Jurors deliberated for more than six hours over three days before convicting him.
Sentencing will take place at a later date.
A Home Office spokesperson said: “There can be no place in our society for those who engage in violence or seek to facilitate terrorist attacks against innocent people.
“Hamas is a proscribed terrorist organisation and we condemn those who choose to support its activities and further its aims.”