I appreciate your work and agree with the premise of this article that privacy needs effort; But I think it needs to be also told that the cost of privacy can be recovered in the long run directly and I don't mean by just healthier lifestyle or social good.
Digital privacy is mainly focused upon preventing siphoning of data, PiHole, uBlock, NetGuard(Android) can save data and thereby results in saving Internet costs. NoScript along with aforementioned tools can save compute and thereby power.
Many of the privacy focused alternatives are idealistic passion projects and so is often free. Linux ecosystem can cover almost all of our computing needs without the need for proprietary tools. LineageOS can give second lease to capable smartphone hardware limited by planned obsolescence, thereby saving costs on new smartphone.
I'm sure there are lot more to add here, But I've my point to why I think privacy not only recovers cost but is also capital efficient.
But the real question as the parent asks should be how can we make these projects sustainable? I'm sure the Linux Foundation wouldn't go bankrupt as the commercial implications are huge, Mozilla looks precarious but I feel its largely because of the management but what about that indie developer like the one above or the one developing NetGuard? How can we establish this value proposition to a layman for making a pro-privacy lifestyle choice?