The question is not whether a candidate is of the same religion as me; plenty of Baptists got cured of that attitude during the Carter Administration. The question is whether the candidate's religion is compatible with patriotism - with, that is, love of and respect for the public at large. You know what Christians usually do, and you know what muslims usually do, and you know what "liberation theology" is - and it is incompatible with American patriotism. Because "liberation theology" is incompatible with having any desire to protect the liberty of others.
What has the religion to do with patriotism?