Based on usage it does suggest being both xenophobic and a Trump supporter is worse than just xenophobic rather than suggesting all Trump supporters would be xenophobic.

PS: I don't support either major candidate. But, the non-xenophobic trump supporters seem more reasonable.

Unless it's repetition used as a rhetoric device, but I hold up the benefit of the doubt.

Given Trump's predisposition towards expressing sentiments that suggest an attitude of uninhibited prejudice with respect to broad swathes of the population on the basis of their race or gender, it stands to reason that people willing to support him are, if not expressly endorsing those positions, willfully participating in the legitimization of a man who has given the US electorate enough reason to believe he would propone dangerously divisive policymaking were he to be elected. This tacit endorsement is rife with implications about people holding this particular political view. 10/10 political correctness.