lemmy.ca defederated from hexbear.net and lemmygrad.ml, who are driving top-level comments on here. Since you can't see the top-level comments, you also can't see any discussion below.
I opposed lemmy.ca's decision to defederated from hexbear based on the perceived behaviour of hexbear users on other instances for exactly this reason: I think an instance's role is to police the actions of users posting to that instance, not to police their users' exposure to other instances.
I don't think the original article is the best source on its own, but...
https://www.bbc.com/news/uk-67100274
That's the current UK policy, which of course condemns discussion on the massacres of babies (of which no proof has been given and which the White House has been forced to retract statements regarding) as "glorifying terrorism."
Netanyahu is further to the right than the Tories, is more emotionally invested in the conflict, and has more to lose if pro-Hamas sentiment spreads. Moreover, given the context of how the Israeli government has enforced media laws in the past, it's not that far of a stretch. The big leap being made I think is that the government is "planning" to do this, not that it's already done so.