

I think the video refers to this event: back in 2022, a journalist was shot by Israeli troops while covering a raid in a refugee camp.
https://en.wikipedia.org/wiki/Killing_of_Shireen_Abu_Akleh
The most recent news article about it is from Al Jazeera, 1 day ago:
As for Biden’s role, Al Jazeera describes it thusly:
The administration of former US President Joe Biden had “concluded early on that an Israeli soldier had intentionally targeted her, but that conclusion was overruled internally”, he said.
“We found some concerning evidence that both Israel and the Biden administration had covered up Shireen’s killing and allowed the soldier to get away without any accountability,” he added.
So, they were able to do the math, but subsequently “fell on their tongue” instead of speaking up. Later on, the issue was dragged out into public attention anyway, but Israel failed to investigate properly and prosecute the killing (they apologized, though). As of yesterday, the primary suspect’s name is also known. But that doesn’t guarantee much.
Myself, I actively avoid YouTube as a source of news, since YouTube has a recommendation algorithm that feeds people content that it thinks they want. To get news about the Middle East, I’ll recommend Al Jazeera almost without hesitation.
The doctrine of the EU so far, is to consider China a multi-faced player: a partner for cooperation, an economic competitor and a systemic rival (e.g. it’s possible to cooperate with China on climate, but not on human rights).
So far, China has also been a multi-faced player. Xi has patted Putin on the back and declared “unlimited partnership”, but no Chinese weapons have been seen in Ukraine. Chinese soldiers have been observed there, but they seem to be really few for a country of that size - either mercenaries or people obtaining first hand experience under mercenary cover. Too few to matter as soldiers.
China has warm trade relations with Russia and has helped Russia source technology and endure sanctions. However, they haven’t made a special and dedicated effort to insulate Russia from secondary sanctions, and several Chinese companies have applied sanctions on Russia as a result.
On other occasions, Chinese representatives have said nice words about Ukraine’s territorial integrity. But deeds haven’t followed.
In UN votes about Ukraine, China often abstains.
Officially, China doesn’t sell drones to Russia or Ukraine. In reality, both Ukrainian and Russian drones are full of Chinese parts. Ukrainian government is asking every bigger player to have a plan B that works without China, but few really have one. What Russian government asks of their drone makers, I don’t know.