Your example has no merits on both key factors - means and motive.
Means - your neighbor has no way to murder you without very high risk of getting punished afterwards. Where is Biden could do to FB whatever he wanted without any risk to himself.
Motive - does your neighbor pressures you into doing something worth killing for?
I mean he also said in the same interview that after he pushed back against Biden, Biden opened an anti-trust lawsuit against Meta.
However, the anti-trust lawsuit was filed in the 1st Trump administration. So, I don't really think you can take anything Zuck says outside of a shareholder meeting at face value (where he has an actual penalty for lieing).