Bogleheads aren't wrong, historically. At least, not in the general sense that buying index funds and mostly forgetting about it is smarter than trying to beat the market with individual stock picks and timing the market.
But, that philosophy came about in an era when there were protections for small investors that prevented the richest man on earth from dipping into your retirement fund to make himself even richer. I don't know how to be a smart investor when the game is so thoroughly rigged for a handful of billionaires.
Perhaps a return to first principles: a smart investment is an asset that generates value. For example I have a powerful PC - that is a smart investment, and not only because I bought lots of RAM before the RAM shortage. Others might have a farm tractor and land, or a restaurant building and tables and chairs and fridges. A house is a smart investment for almost anyone (problem is they're too expensive to be worth it). A car, if your city isn't walkable or your job involves carrying equipment around. A sound system if you own a nightclub.
I think the way to adjust the boglehead philosophy for this scenario is to construct a shadow index which would be the same as the normal index except with the grifts removed or at least underweighted. And then buy stock to track the shadow index.
I assume not all indexes will make this deal with the devil, as Nasdaq is doing. At least, not immediately. But, given how lax regulation has become and how corruption and lies from the biggest companies has become commonplace, I have to assume it will be harder to not let Elon Musk have a taste of everything just because he's too rich for anyone to ever say no to him.
But, that philosophy came about in an era when there were protections for small investors that prevented the richest man on earth from dipping into your retirement fund to make himself even richer. I don't know how to be a smart investor when the game is so thoroughly rigged for a handful of billionaires.