It is an important observation that American Muslim dawah efforts often are unbalanced in targeting whites over non-whites, rich over poor. This is attributed to the racism and elitism plaguing the community.
All that is beyond question. But one other factor to recognize. Many American Muslims, especially those with immigrant backgrounds, tend to see religion itself as something that should only be focused on after attaining a certain standard of living and professional achievement.
Even in many of their own families, American Muslim parents discourage their kids from spending much time on religious activity for fear that it might distract them from academic studies and thus jeopardize future material prosperity. In their minds, religious devotion is something that is only respectable, if it can ever be respectable, if one has also achieved professional success. Because, “Of course any poor beggar can be a mullah! Why spend time inviting the poor to Islam when they have bigger problems to worry about? In fact, giving the poor dawah might distract them from making something of themselves.” — is the condescending, messed up logic.
So yes, elitism is a problem, but it is a multifaceted problem.