Exit polls showed that among both Latinos and non-whites as a whole,
non-college graduates were slightly more Democratic than college graduates. It's within the margin of error. Not sure how it stacks up compared to 2012 since we don't have that data (or 2008 even, I don't think), but I find it hard to believe that there were huge swings among non-white, non-college graduates to Trump.
I also think that the exit polls - perfectly capable of being off by as much as the difference between 2012 & 2016 Latino numbers - are slightly underestimating Latino support for Clinton this cycle. With that being said, I believe there was a
slight shift to Trump, but in all likelihood, it was motivated by a surge in previously-apathetic college-educated Latinos who are second and third generation Americans, who insist that "people need to come into this country
legally" (even though a good number of them wouldn't be here if that had always the case). If you live in an area with a fairly prominent and/or established Latino community, then you know exactly the type I'm talking about here.