Well, either the Republican party collapses or the democratic features of the US get broken. It's really one or the other, now.
During the rise of NSDAP, Jewish-owned German newspapers sided with the far-right party over Jewish working-class, who were getting massacred in the streets by SA and SS. Later, Hitler's regime would nationalize the newspapers and send their owners to the concentration camps.
Fetterman is banking his career on MAGA winning. But if they do, the regime will dispose of him when he's no longer useful and he'll be arrested (and imprisoned or executed) as a Democrat.
But Fetterman has shown us he actually doesn't have specific values, and is willing to perform any part in order to stay adjacent to power.