"With the money saved by killing JWST we could fly a dozen or so Explorer class missions that would provide real astrophysics and astronomy data sooner than JWST"
Planetary Sciences, Geologists, and Astrobiologists benefit from "boots on the ground" missions. The types of astronomy serviced by JWST have little crossover with these disciplines, and so your generic "astrophysics and astronomy data" gathered by Explorer missions really can't be compared to the data JWST is designed to gather.
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"With the money saved by killing JWST we could fly a dozen or so Explorer class missions that would provide real astrophysics and astronomy data sooner than JWST" Planetary Sciences, Geologists, and Astrobiologists benefit from "boots on the ground" missions. The types of astronomy serviced by JWST have little crossover with these disciplines, and so your generic "astrophysics and astronomy data" gathered by Explorer missions really can't be compared to the data JWST is designed to gather.