The middle class is the class that feeds the unproductive classes at both the top and the bottom. And the unproductive have formed a political alliance where the bottom votes for the top in exchange for handouts, all paid for by the middle.
You're ignoring the economic effects of money being immediately spent on consumer goods and services.
https://www.ers.usda.gov/topics/food-nutrition-assistance/su...
> An increase of $1 billion in SNAP expenditures is estimated to increase economic activity (GDP) by $1.79 billion. In other words, every $5 in new SNAP benefits generates as much as $9 of economic activity.
1) SNAP is cyclical - so it's gonna naturally boost a struggling economy, as would most other expenditures
2) there's a natural limit - there's only so much food a family needs
There's also a point where a family may demand more food but providing them with it actually harms society. The obesity epidemic is the biggest health crisis this country has ever faced and when 40% of SNAP recipients are obese (compared to ~32% of nonrecipients), we're basically paying to sentence these people to a litany of expensive, chronic medical issues. Of course, merely reducing benefits does nothing to solve this and harms the 60% of recipients who are at a healthy weight, I'm just pointing out that the natural limit of demand is far beyond the optimal level of supply for a program meant to provide a net benefit to society.
Source: https://www.fns.usda.gov/sites/default/files/ops/NHANES-SNAP...
https://www.strongtowns.org/journal/2017/1/9/the-real-reason...
Alternatively, read the DoJ report on Feeguson.
The middle class gets taxed as much or more than the lower and they put in more due to simple economics.