Genuine Tossup; Clinton ekes out a win.
Even in Texas, there are limits to how well Trump can do among Hispanics.
Let's try out a scenario. Let's say this happens (a very favorable scenario for Clinton)
Whites (55%): 74% Trump, 22% Clinton
Latinos (25%): 80% Clinton, 15% Trump
Blacks (13%): 90% Clinton, 8% Trump
Other (7%): 65% Clinton, 30% Trump
This ends up at about a tie, 48-48. This assumes Clinton wins 80-15 among Latinos and Latino turnout increases significantly,
and whites swing to Clinton,
and blacks/other makes up more of the electorate as well.
Don't be so overconfident.