I can understand them not being as enthused FOR Clinton. But make no mistake, hispanic turnout will shoot upwards because of Trump.
Negative emotions often have a stronger effect than positive ones. There's an old joke about two veteran political operatives, one from each party, meeting for a drink and swapping war stories and tricks of the trade:
R: One thing I always do is when I pay for a taxi, is smile, give the cabbie a big tip, and say "Vote Republican!"
D: I do something similar. I smile, give the cabbie NO tip, and say "Vote Republican!"
Good one!
Though I think it'd be more realistic if you switched the party. Republicans invented Ratf**king, after all.