Why are white men so much more likely to kill their families than other ethnicities?

I seriously want to know.

In the US,
An overwhelming number of familicide cases are perpetrated by non-Hispanic white men — 91 percent, the NIJ said — and 88 percent used a gun, per the NIJ. "Seventy percent of the killings involve an intimate partner, and most occur in the home."

I'm not saying you should be afraid of all white people because obviously familicide is very very very rare but I would still like to lower those odds.
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I am Italian, Polish and Irish by the way, so I am pretty white
Why are white men so much more likely to kill their families than other ethnicities?
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