It's not Facebook's fault, they're just following the law. The issue, if anything, is that in Canada you don't have the legal right to freely express yourself online and Facebook is legally allowed to censor your content. So obviously Facebook are going to have no problem with doing that if the Indian government are telling them to. The mistake of allowing private companies to have the right censor legal content (for whatever reason) is the mistake here.

Imo there's little difference in what Facebook is doing here with what they did when they removed Jan 6th posts. Hardeep Singh Nijjar was trying using his political influence to overthrow the Indian government by supporting extremist groups within India. Obviously unless you pass laws to protect freedom of speech Facebook isn't going to allow posts supporting this kind of behaviour on their platform – even if in this case a lot of people in the West agree with the extremists.

I'll also note that we don't even know if Hardeep Singh Nijjar was assassinated yet. This for the time being ranges from likely to a conspiracy theory depending on which governments and media sources you trust.

So should terrorists

That's why I'm on Gab.