Sure I agree, but assign generalities based on what one candidate and one radio host stated is very dangerous thinking.
You want us to start finding the comments and policies from the various current GOP presidential candidates that show such positions? Do you really think we will have a problem doing so? If we find the majority of the GOP presidential candidates - the people who are going to represent the party in elections, and possibly hold the highest office in the land - hold such positions, how can we then say the party (as a collective, not as individuals) isn't such?
A little while back, a form of sexism argument came up. When women would say they'd experienced sexism, a man would retort, "Not all men do that!" It is a defensive deflection that 1) Make it about the man's righteousness, rather than the woman's experiences, and 2) effectively implies that there isn't a problem. The answer was, "Maybe not, but *all* women!" The fact of the matter is that *enough* men are sexist that the problem is real and ubiquitous for women, and therefore needs to be addressed.
Thus, in analogy, I say that the fact that not all Republicans are personally overt racists does not mean that the GOP's racist policy proposals are not a problem.
There is a point where, as a person of conscience, one should look at any group you affiliate with and say, "You know what? This group has gone too far," rather than protest, "Not all of us are like that!" At that point, you have two choices - leave the group, or work to change the group. Because, if you maintain affiliation as it is, and not worry about it, you are tacitly approving of the behavior.