I don't think that first bit is true, at least not here in the US. Life expectancy and quality of life here is decreasing rather than increasing, for the first time in decades. Home ownership has fallen off a cliff. Death due to preventable illness has skyrocketed along with healthcare costs, and as I said, cost of living has quintoupled while wages have remained stagnant.The majority of the next generation will live better than we have unless something catastrophic happens. But the point is not, particularly about beef, I have no issue reducing the amount of beef being consumed. Simply you can't keep throwing the bill/Impact of all these changes to the poorest in society.
It's really only smooth sailing for the rich here. No matter what's bills you throw at the general population, it will always be true that the wealthy class will have resource to be less impacted. Which is why you also make efforts to reduce excessive wealth disparity separately.