The joke was definitely in bad taste, and considering this is about politics he should have known better. However, in the context of the joke, he was talking about needing more women to participate in what they were doing, and then he cracked the joke about how he saw statistics about older white male suicide, which his joke's aim was to emphasize his previous point about needing more women. This wasn't some anti-white men SJW stereotype.
I can see this angle of what was transpiring at this gathering.
But it is still a bad joke ; Disgusting.