That is what you asked for. Your question was "
who makes up the Trump base?"
You are saying those who have a high school diploma or "some college" are uneducated? That is 2/3 of American adults. None of the studies label these voters "uneducated." They list them as "without a college degree." The "uneducated" is a just a negative label used to apply to all those Democratic and Republican voters without a degree.
Trump won white college graduates 49-45%. Voters with "some college," a "college degree," or "postgraduate degree" made up 67% of Trump's voters.
They might be "poor," but the two lowest income groups voted Democratic and Trump won a plurality of all voters over $50,000. I remember when Democrats used to champion low income voters, now they seem ashamed of them.
Under $30,000: Clinton 53% v. 41% Trump
$30,000-49,999: Clinton 51% v. 47% Trump
$50,000-99,999: Trump 50% v. 46% Clinton
$100,000-199,999: Trump 48% v. 47% Clinton
$200,000-249,999: Trump 49% v. 48% Clinton
$250,000-or more: Trump 48% v. 46% Clinton
"The Republican Party made deep inroads into America’s middle-class communities in 2016. Although many middle-class areas voted for Barack Obama in 2008, they overwhelmingly favored Donald Trump in 2016, a shift that was a key to his victory. Meanwhile, Democrats had more success retaining a loose “coalition” of lower-income and upper-income communities."
http://www.pewresearch.org/fact-tan...s-victory-divisions-by-race-gender-education/
http://www.pewresearch.org/fact-tan...d-ground-in-middle-class-communities-in-2016/
https://www.statista.com/statistics...e-exit-polls-of-the-2016-elections-by-income/