Many Tarahumara were taken to Baja to work in the fields in the last two years. However, no one is forcing them to do the work at gunpoint. Many of the people who manage these demonstrations are professional agitators paid for by politicians in upcoming local elections. Same thing is happening here in Monterrey. Funny the things people will do for a free box lunch, a tee shirt and a day without work.
Conditions aren't much better for illegals working in the fields in the U.S. and they live in deplorable conditions. There kids are yanked out of school with every season change and sent somewhere else.
OTOH, I've never seen anyone complain about paying for cheap produce or offer to pay double so that the workers could have higher wages. Maybe all the ex-pats in Mexico will stop eating fresh produce for the next year in protest.