After investing $4700/year for 40 years you still won't be rich. The amount I could withdraw each year would still be much less than my current middle-class sal

After investing $4700/year for 40 years you still won't be rich. The amount I could withdraw each year would still be much less than my current middle-class salary. In other words, I'd have less income than I do now. In fact, I need to squirrel away a very large proportion of my salary to retire and be better off than I am now. I can't afford that, which is the point. The middle class is too poor to ever be rich.