If a corporation is making strong profits and its workforce is on poverty level incomes and relying on public financial support to survive, kind of feels like it makes sense for the government to claw back those profits in higher taxation. Notion being that the corporation that is so severely under paying its work force isn't genuinely profitable and is falsely portraying itself as so.
Amazon Warehouse positions all pay well above minimum wage, in every state. They also offer benefits. Concluding Amazon isn’t paying enough, because a large portion of their workforce qualifies for food stamps, is the wrong conclusion.
Federal minimum wage is $7.25 per hour, so that's not saying much.
Going by state minimum wage, your statement is incorrect. According to Google the average Amazon warehouse worker in California makes $17-18 an hour. California minimum wage is $16 per hour.