What is your problem with the statement? We should be trying to increase voter identification with the Republican Party from all races.
Even if you believe it's moral to exclude Blacks, from a practical standpoint, Whites are going to be in the minority in this country in the near future. The demographics are against us. The Black and Hispanic populations are growing at much faster rates than Whites. Better that we start planning now to expand the party, than wait till judgement day and sell out our principles and pander to retain power.