Over the summer, Reuters approached the issue in the most straightforward manner I've ever come across. In terms of fleshing out public sentiment, the approach is bar none. Respondents were asked about what should be done with illegal immigrants in the US. Only two committal answers--"deport most or all of them" and "allow most or all of them to stay"--along with a third "unsure" cop-out option, were offered as responses.
Reuters' interactive polling application allows for cross tabular data to be presented in graphical form, too.
First, the country as a whole:
|Most people still prefer US to be a nation of laws|
This is strikingly similar to the results from a recent poll on the Obama/Ryan plan to wave in 10,000 Syrian refugees.
The racial differences are stark. Whites:
|Most whites would like to have a country|
|The only known issue for which black opinion is not monolithic|
Asian results are inaccessible due to insufficient sample size.
Drilling down a little further reveals why Trump's bold candidacy announcement and his incorrigible refusal to yield an inch in the intervening months--choosing instead not only to stand his ground but to advance forward--has been a political masterstroke. Fortunately, it also substantially increased the odds that Western civilization will survive the 21st century.
White Republicans (pardon the redundant adjective):
Flavor text source here.
To show this isn't a cherry-picked artifice, data for the entire month are included. September 10th was selected above because it was end date of the 5-day polling period with the highest number of respondents over the period Reuters administered the survey question.