"To distinguish themselves from NIMBYs, the current generation of housing activists has adopted new 'back yard' variants (YIMBY, 'Yes in my backyard'; PHIMBY, 'Public housing in my backyard'; YIGBY, 'Yes in God’s backyard')..."

"... to declare how they are for things (everything, subsidized housing, building on church parking lots) that a NIMBY presumably is not.... [Governor Gavin Newsom said] 'NIMBYism is destroying the state.' .... Encoded in YIMBY ideology is a belief that the best thing to do with NIMBYs is discard them. But since the successes of one generation become the burdens of another, they should first understand them.... Susan Kirsch was partial to 'Small Is Beautiful,' which was published in 1973 by the economist E.F. Schumacher. The book cast doubt on a growth-at-all costs mentality.... 'Part of how it influences me is I think greater self-reliance and self-resiliency are qualities that keep a community or culture strong,' Ms. Kirsch said of the book. 'And the trends we have now, with being able to have efficacy in your own life, is part of what I think is being diminished.'... Environmental activists came to define themselves by what they could stop.... Marin County, a woodsy enclave that sits across the Golden Gate Bridge from San Francisco, enacted some of the strictest growth control measures in the country — proudly.... Today Marin County is the most segregated county in the Bay Area."

From "Twilight of the NIMBY/Suburban homeowners like Susan Kirsch are often blamed for worsening the nation’s housing crisis. That doesn’t mean she’s giving up her two-decade fight against 20 condos" by Conor Dougherty (NYT).

I didn't notice that the acronym "NIMBY" had come to refer not only to the attitude but to the person with that attitude.

But according to the OED, the usages go back to 1979 and 1980. The oldest example of NIMBY to refer to the person was in Forbes: "Home builders and city planners have a new name for an old enemy—the ‘Nimbys’..those who want no construction that might disturb the character and real estate value of their neighborhoods."

Disparaging those who want to preserve the aesthetics of their neighborhood is an old game. Notice how the homeowner's sensitivity is portrayed as insensitivity. These people lack empathy. They're part of the mechanism of systemic racism. 

ADDED: Here's the Wikipedia article for "Small Is Beautiful: A Study of Economics As If People Mattered." 

In the first chapter, "The Problem of Production", Schumacher argues that the modern economy is unsustainable.... Schumacher's philosophy is one of "enoughness", appreciating both human needs and limitations, and appropriate use of technology. It grew out of his study of village-based economics, which he later termed Buddhist economics, which is the subject of the book's fourth chapter.

Have you heard of "Buddhist economics"? 

The most fundamental feature of Buddhist Economics is seeing "people interdependent with one another and with Nature..." 

Sri Lankan economist Neville Karunatilake wrote that: "A Buddhist economic system has its foundations in the development of a co-operative and harmonious effort in group living. Selfishness and acquisitive pursuits have to be eliminated by developing man himself."...

Buddhist economics holds that truly rational decisions can only be made when we understand what creates irrationality. When people understand what constitutes desire, they realize that all the wealth in the world cannot satisfy it. When people understand the universality of fear, they become more compassionate to all beings. Thus, this spiritual approach to economics doesn't rely on theories and models, but on the essential forces of acumen, empathy, and restraint....

I will restrain myself from divining how that translates into mediating the dispute between condo-builders and the owners of aesthetically pleasing one-family homes.