Trump hate is not radical it's rational. I think the guy should look in the mirror.

It does read like a subtle parody or ironic commentary. It’s the style of someone poking fun at common narratives about polarization by showing how absurdly “offline radicalization” might look.

Is it really so unthinkable that someone who lived through or close to the troubles should feel enraged by an ongoing starvation and relocation campaign by a powerful empire?

How is this "radicalization" and not "developing your own opinions"? By the facts presented in the article, the Father reads widely. Perhaps the Irish press is as homogeneous and "woke" as depicted, but CNN has never been liberal, and Al Jazeera doesn't fit on a left-right axis. This Father can and does receive many viewpoints, and actively chooses among them. As any rational being would. This isn't "radicalization", it's deciding a way to believe that the author of the article simply doesn't approve of.