MAGA doesn't really want the 50s

 Not for everything anyway.  They just want the cultural 50s.

Trump has defended his tariffs by arguing that young American girls don’t need a lot of dolls—in fact, they can make do with fewer. His basic case, as top adviser Stephen Miller elaborated, is that we don’t need imported Chinese toys, because kids are already drowning in them, and most American parents will happily pay more for fewer quality dolls made in America rather than buy cheap and superfluous Chinese ones.

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As many have noted, Trump—whose own kids were raised in literal golden splendor—is in no position to lecture Americans about accepting scarcity created by his own policies. Indeed, the whole conceit is a tacit admission that the tariffs will hike prices on consumers, which he keeps denying will occur.

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Many of the jobs this would create are bad ones. And even if it were possible for some fraction of manufacturing jobs along these lines to be decent ones, Trump’s own hostility to unions and government regulations would work against that goal.

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[Trump] reiterated the point to reporters on Air Force One, but this time, he grew angrier. “Let’s not waste a lot of time with stupid questions,” Trump ranted darkly, even though the queries posed concerned his own ideas about girls’ dolls, ones that raise obvious questions about the impact he himself expects his policies to have.

Stephen Miller: "If you had a choice between a doll from China that might have lead paint from it that is not as well constructed, as a doll made in America that has a highly environmental and regulatory standard ... and those two products are both on Amazon, that yes, you probably would be willing to pay more."

  New Republic

You'd only be willing to pay more if you had more.

And with the Trump regime doing away with regulations, your American made dolls will not have "a highly environmental and regulatory standard" and may well be made by children themselves with states knocking back child labor laws as Republicans are doing now to make up for loss of cheap immigrant labor.

Josh Bivens, chief economist at the Economic Policy Institute, points out that Trump has laid off large numbers of officials at agencies overseeing worker safety, halted government rules ensuring good working conditions, and fired pro-worker, pro-union appointees at the National Labor Relations Board, among many other things.

“What makes manufacturing jobs good is unions and regulations that protect worker safety.”

That's just the point. Manufacturing isn't what made America great for employment. Unions did.

As for the desirability of manufacturing dolls in the US...

“Do most Americans want to sew tiny little skirts a thousand times a day?”

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There’s no easy way to envision mass domestic doll manufacturing creating lots of good jobs, these people tell me. It’s not just that much of the human-performed work is drudgery. There are also other factors, they say: Lots of the materials you’d need to make the dolls, as well as many of the machines for making them, are also manufactured abroad. So you’d need to import all that anyway.

Rebuild textile factories, without regulations, for toxic dyes and chemicals.

Even if we could construct a massive and largely domestic supply chain for dolls, it would take many years to spin up. And it’s not clear how long many of the manufacturing jobs would last, even if we did do that. “The only thing that will happen is eventually robots and AI will take over,” Cathey says.

And the environment will be polluted.

Even if you think some good outcomes might result from producing far fewer plastic toys, lots of quality jobs won’t be one of them. Indeed, the opposite would happen, these industry officials tell me: Because toy companies also employ lots of higher-end professions like design and marketing—and these are the jobs that are concentrated in the United States already—producing far fewer toys would kill many of those good American jobs, while creating far fewer bad manufacturing jobs in their place.

“You’d be trading millions of good-paying jobs for tens of thousands of horrible-paying jobs,” Cathey says.

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As Paul Krugman details, many Trump officials are now explicitly packaging the idea of a revival of low-level manufacturing work in many areas—from sneakers to apparel—in the language of nostalgia for the 1950s. It’s a preposterous notion, one that gets at the core absurdities and outright lies embedded in MAGA ideology at a very fundamental level.

After all, the whole selling point behind the promise of restored manufacturing is supposed to be that this will create a lot of good breadwinner jobs that will then shore up stable, virtuous manufacturing communities. But trying to reshore things like doll manufacturing—while rolling back worker protections and the regulatory state, which are also core ideological commitments of Trumpism—is a recipe for anything but.

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“Painting eyeballs on Barbie dolls and styling the hair of Bratz dolls,” notes Foreman drily, “aren’t the kinds of jobs that President Trump has promised in Michigan or Alabama.”

I think they very much are.