The statement as a whole is equally effective with just "white guys" since most people can draw their connotations from the context and those that can't wouldn'

The statement as a whole is equally effective with just "white guys" since most people can draw their connotations from the context and those that can't wouldn't know the word anyway (and researching it throws them into the deep end). Reading between the lines (fairly or not), adding that descriptor implies a value judgement beyond the baseline lack of diversity. It draws attention to the individuals as the problem rather than systemic or emergent issues.