The stories really need separate ratings. So:

Unauthorized Bread: ★★★★★
A woman jailbreaks hear toaster, helps the other tenants do the same, and has to work hard not to get caught.

Model Minority: ★★★★★
The American Eagle, a.k.a. The Superhero Not called Superman For Trademark, Reasons, helps a black guy who is being beaten by police officers, and finally realizes that there is racism in America.

Radicalized ★★☆☆☆
Doctorow mixes up Incel/MRA terrorists with criticism of the terrible mess of the U.S. health insurance situation. The protagonist does not report planned bombings to the police.

Masque of the Red Death ★★☆☆☆
A rather straight modern retelling of the basic Poe story, with some much too faint hints that the people not in a bunker are doing OK and working together. The protagonist dies of the disease, but also because he hides from people coming to help him.

The last two get the low rating mostly because it’s not made clear enough for my taste that the protagonists are the baddies. Or, maybe for Radicalized, Doctorow thought the protagonist wasn’t all that bad. In that case i reserve a ★☆☆☆☆ rating for that one.