No, it's a very specific thing and not at all applicable here. Blood libel was something along the lines of "the Jewish people are murdering children to use their blood for secret ceremonies"[0]. The "libel" part should give it away - it doesn't apply to someone revealing true facts.
The people calling it blood libel because the facts are inconvenient and make Israel look bad are being disingenuous.
This is the first time I've ever seen someone suggest there was truth to the blood libel. It seems pretty obviously absurd to me that there would exist a Jewish ritual requiring Christian blood. Can you provide this "irrefutable evidence," please?
Definitely. Not even talking about likes of Russia or China where said person would simply disappear.