By this logic Bernie Sanders endangered lives because one of his supporters shot Steve Scalise. To my knowledge Jones just said something like Sandy Hook was fake, which is clearly a bad thing to say, but it doesn't threaten people.
Whereas Bernie immediately denounced the shooter and reached out to Steve Scalise. Steve does not blame Bernie for having a deranged fan (https://www.newsweek.com/steve-scalise-shooting-bernie-sande...). Bernie did not imply Steve deserved to be harassed or shot. He has, in fact, asked his supporters to back off (https://www.rollingstone.com/politics/politics-news/bernie-s...).
These two things are obviously not equivalent.
It's still the case that he changed his attitude too late, only after some of his listeners acted and the escalation became real.
This is an interesting point, because had he done that it could be used against him as an admission of guilt.