The article you linked is ALL murders in Boston - not just gun murders. And I am not sure what the race of murder victims has to do with gun death rates, the race of the gun using murderer is more important... I am not saying all young white Christian men are mass murderers, but they can't deny that young white Christian men have a mass murder problem, somehow they are being radicalized.
Some people have put forward decent ideas on how we could restrict firearms from such individuals. (I personally think that everyone purchasing a firearm should have to find a longtime acquaintance to swear under penalty of perjury that this person is fit to own a firearm. Maybe others have better ideas.) Regardless, I hope that that situation can be improved somehow.
The race of a murderer is strongly correlated with the race of the victim. "As with homicide in general, most victims are the same race as the offender(s)....More than 80 percent of all crime involves victims and perpetrators of the same race. Whites and African Americans of course can and do attack each other, but they are the exception, not the rule. "
> young white Christian men have a mass murder problem, somehow they are being radicalized.
There is definitely a mass murder problem, but it isn't particularly biased toward young (mean age 31) or white (54% of shooters out of 60+% population share). It is overwhelmingly male (especially for perpetrators - 98% of mass murder perpetrators, but also for victims - 75% of murder victims).
Not sure where you're getting the idea that Christians in particular are committing the shootings - there doesn't seem to be a lot of data or discussion of the religion of the perpetrators.
"Despite the widespread perception that mass shooters are overwhelmingly white males, researchers have found that white men are not overrepresented among mass shooters. In other words, white men are no more likely than other male demographic to engage in a mass shooting. Daniel Engber, writing for Slate, noted that mass shooters are not disproportionately white male. He writes that “the notion that white men of privilege are disproportionately represented among mass shooters—indeed, that they make up ‘nearly all’ of them—is a myth.” A widely referenced analysis by Mother Jones (mentioned earlier) found that “white people weren’t overrepresented among mass shooters. "
Statistics change if you include other types of mass shootings (family more white, felony more black) which are much more common than the "public mass shootings".
https://centerforinquiry.org/blog/who-are-mass-shooters-mass...
> Non-black perpetrators committed 70% of these public shootings
So you're bolstering your argument that public mass shootings are primarily white by claiming that blacks (14% of the population) commit 30% of the public mass shootings?
Statistics and context matter.