Lemmy.ml is not anti-imperialist. They remove anything critical of China and Russia, both imperialist states.
Instances that are actually anti-imperalism in that they criticise both Western and Russian/Chinese etc imperialism might be lemmy.dbzer0.com or slrpnk.net.
lemmy.ml is arguably one of the most imperialist instances especially in terms of censorship.
The UK passed a bill on the same day cutting literally half the support money disabled people rely on and plunging 150’000 into poverty. So people across the pond may be focused on that.
Oh and the fact you can get 14 years in prison and be labelled a terrorist for saying you support a peaceful charity against Israeli genocide.