You mean the same amount of time they dedicated to talking about incels and the red pill?
The point of the show was actually that social media was to blame, even more so than the parents of either of the kids.
The kid was heavily influenced by whatever the social media algo was feeding him (as any kid would be), and the girl was a cyber bully who didn't consider the consequences of her words.
Obviously our main kid wasn't painted as a victim, but it's not really about him being "radicalized white kid". There is more nuance there, as there is in life.
They could've made it a black kid, but then people would focus more on the race issue than what the actual thesis of the show was, which was the social media aspect.
Nobody is saying the migrant crisis isn't an issue, but this show was under zero obligation to tackle that issue, when it never claimed to be a true story about a particular event.
Here's what I found about that. Quoted below...
"There was an incident where a young boy [allegedly] stabbed a girl," Graham, who also plays Jamie's dad in the show, told Netflix's Tudum of the true story behind the fictional show. "It shocked me. I was thinking, 'What's going on? What's happening in society where a boy stabs a girl to death? What's the inciting incident here?' And then it happened again, and it happened again, and it happened again. I really just wanted to shine a light on it, and ask, 'Why is this happening today? What's going on? How have we come to this?'"
Jamie, played by Owen Cooper, might not be a real kid in the literal sense but, to Thorne and Graham, he is a demonstration of what is happening to young men who are becoming exposed to the manosphere online.
"One of our aims was to ask, 'What is happening to our young men these days, and what are the pressures they face from their peers, from the internet and from social media?'" Graham told Tudum. "And the pressures that come from all of those things are as difficult for kids [in the UK] as they are the world over."