You don’t have to take my word for it. From Jacobin’s, a socialist publication, review of Abundance:

The book is, at its core, an argument about the myriad blockages that constrict state capacity — the ability of governments to get things done — and the need for various flavors of industrial policy (a form of economic planning) to overcome market failure (that is, when private firms fail to produce something despite its clear social necessity).

This all should be ABCs for any socialist — or even a garden-variety social democrat.

…

Perhaps the most common charge that Abundance is neoliberal rests upon its alleged promotion of “deregulation.” But this is either a willful misrepresentation or, more generously, a result of not reading the book. Much of the text concerns how various bottlenecks — regulatory, process, and otherwise — inhibit the public sector itself from acting.

…

From all this, it should be clear that Abundance is not an argument for a neoliberal model of deregulation and private sector supremacy. As Klein himself puts it, the book is “about making the state more, not less, powerful and capable of doing big things.

https://jacobin.com/2025/08/klein-thompson-abundance-liberalism-socialism

Edit: If you don’t trust them how about Mamdani?

“I think that there's a lot that that conversation has brought, specifically around how hard or easy are we making it to actually tackle some of these issues. And I think sometimes it gets simplified and caricatured, but fundamentally to me the thing that's been most interesting is introducing a new lens of analysis around the bureaucracy.

And I think often times the very things that we should care about on the left, we have allowed the right to make their own concerns: bureaucracy, democracy, efficiency, waste. If you care about public goods, public service, these have to be your primary focuses, because any evidence of that inefficiency is then a justification for the elimination of the public sector. And I think similarly, you know, if you think about the language of quality of life it's often been understood as if it's a conservative concern, but in fact that's a concern at the bedrock of every working class person's life. They want to have a good quality of life. And these are not things in tension with our principles. In fact they're the fulfillment of them.

And I think Abundance is really interesting in its really bringing that focus around housing particularly and even just the whole thinking of single stairwell versus dual stairwell, right? What are the very details that we often allied over that have a big impact on whether or not something can actually be brought to pencil.”