Economically all the cost of building a "boil some water and turn some turbines" plant is _already_ in the "boiling some water and turning some turbines" part of the generation, and even if the heat part of it was _free_, the rest of it would be too expensive to bother building a plant for it, compared to just building solar and wind generation and some better batteries.
And there are efforts to make building out transmission and interconnecting with the grid more streamlined, so maybe some of those problems will be gone by the time fusion’s ready.
Someone said recently that it’s nicer to have bad laws and good tech than a bad tech and good laws, solar+storage seems like it’s in the former now, and if we can clear the bureaucratic hurdles, we’ll see it boom here like we’ve seen elsewhere.