They'll immediately fall for the next such guy. Republican voters aren't actually reconsidering their views. Corporations and oligarchs have known no major blowbacks in decades and keep winning on every front, further eroding the Republic and its institutions little by little. And they won't stop until all that's left of America is an empty shell, a dead state like Russia, a sandbox for the Epstein class.
Humans have figured out an easy medicine to reduce weight, which is the number 1 causal factor in morbidity/mortality.
There are also novel cancer immunotherapy medicines that are drastically increasing quality and quantity of life for cancer patients, like keytruda and blinatumomab.