^^ Sanders didn't compete in Texas, and there was legitimate voter disenfranchisement in Arizona.
What's voter disenfranchisement has to do with Sanders' poor performance among Hispanics?
If anything it's Clinton who should complain.
And Sanders lost Hispanics in a landslide even where he competed (Florida, New York).
He only won them in Illinois because of Rham's antagonism with the community.
Both NY & FL were closed primaries, I do think the surge in younger voters helps Sanders. Young latinos may be helping his numbers with the group overall.