The political activists calling themselves journalists in the MSM are a serious problem nowadays.
Aggro sells advertisements and the more trouble these activists can stir up throughout the world the more money there is to be made.
There was a time when journalists stood up and questioned their political masters for the people but these days if a real outfit like Gript does that they're classed as 'far right', nazis and troublemakers by the MSM.
I would say that is not the root cause of the problem, it is downstream.
I personally think you can see something more of the causes if you consider how antizionism is fundamentally a form of mob behaviour, and about activating herd instincts.
And how Fianna Fail in particular gravitated to it because it helped rationalise their own wrongdoing, to dissolve their own sense of shame, responsibility, and accountability, through denigrating others far away.
And the general Irish population more often than not complicit in a manner in this same wrong-doing, were only too glad to fully buy into it.
So that we see now as you allude to, our state compliant media brooks no dissent, rejects nuance, and is in effect governed by a self-reinforcing worldview that accepts no external critique.
Especially on display on the topic of Israel. I.e. On antizionism and its formula of recasting the Jewish national liberation movement as colonialism, racism, apartheid, and genocide, through repetition, and inversion - basically become dogma.
A dogma that has been taken up with the same fervour as catholic dogma was taken up before it.
And of course it should go without saying that antizionism is not the opposite of Zionism, but an assault on Jewish life everywhere, just wearing a mask.
In other words, it is contemporary antisemitism.
So the far right, the far left, the Greens, the progressives, the Muslims, the Fianna Failers, and everyone else point at "Israel" (as a proxy for Jews) as the problem, as the cause of everything bad that happens to them, like the Moroccans above after losing in the football.
So I go on and on about it. Sure. But just take a look at the fucking thing. And take a look at history and how this same thing has played out again and again.
Inevitably this is the dynamic that lies at the root of extremism wherever it arises, including in the Green party, the topic of this thread, but the same thing is arising everywhere in our society, as Celine's comment above I think has made clear.