"Democrats counting on President Trump’s hard-line immigration policies to spark energized Hispanic turnout and a wave against GOP candidates in this year’s midterms will be surprised to see what’s transpiring"
That's because they're still living in a pre-internet mindset.
They no longer control the narrative through the MSM and aside from trying to censor the net, they have no idea what to do about it.
US Citizens who happen to be hispanic are pizzed at them for being Smeared as a Racist Block who are - because of Ethnicity alone - automatically in sync with Open Borders bringing in tons of hispanics who Don't identify as Citizens and aren't likely to once they get here.