[noskynethere]

I may be misunderstanding your point, but you appear to suggest that union workers are at more of a risk than non-union. The link you provided (addressing only mining unions, not all unions) says exactly the opposite:

"Looking at these data, only in 2001 were there disproportionately more fatalities (39 percent) in union mines (unions represented 30 percent of coal miners that year) than in non-union mines. Recent figures are more typical. In 2006 through 2009 union mines accounted for 10, 6, 10 and 5 percent, respectively, of all coal mine deaths, but over that period unions represented 15 to 22 percent of coal miners. For those years unionized miners appear to have been one-fourth to one-half as likely to be killed in mine incidents as their non-union peers."