Short version:
Sen Sanders' proposal is a good idea but will fail to address the reasons of *why* so many people are working themselves to death.
Long version:
I am still recovering from about two months of working six days a week. Even the massive overtime I was getting wasn't worth it. I'm thankfully not in a situation where I normally need to just to keep fed and a roof over my head, but many people are, and they would not be impacted at all by Sen Sanders' proposal, even if it *is* a good idea overall.[1] And it doesn't matter if minimum wage is $100 (or £100 or €100 or whatever) an hour if the cost of living wasn't out of control, and a substantial portion of the population will still have to work 50+ hours a week just to survive.
Only part of this necessity, albeit a rather large one has to do with normal supply/demand[2]. It's also a matter of monopolies, whether in essential communications services, or housing. A relative handful of entities own roughly 80% of the rental housing market in the Bay Area, and as the lawsuits against that Texas company's rental pricing software show, collude to jack rents beyond the stratosphere. These companies also place bids on new homes that very few people could even hope to match, convert various units to AirBnBs, and would rather keep vacancies for tax reasons than lower rents. And I'm not even getting into the "everything is an ever-increasing subscription" model for so many other things in life. At some point, government intervention to control the cost of living has to happen. Breaking up these monopolies, encouraging "work from home" where possible and converting now vacant office spaces into housing, and doing away with zoning restrictions in the way of denser construction could make a significant dent in that cost, and, I'd argue, are better options than price-controls.
[1] Even though it won't benefit me personally, and I do think that the US needs to improve the work/life balance of its people overall, this idea doesn't address those driven by necessity.
[2] Housing construction, especially the denser sort is often blocked by zoning/NIMBYs and nowhere near enough to meet needs.