The ratchet of authoritarianism has been turning steadily in the US (and the rest of the world) for at least the past 25 years, and a big part of why no coherent opposition to it managed to manifest is how it was turned into a partisan issue. Republicans and the apathetic centre tune out Democratic complaints about the authoritarianism of a Republican administration just as it happened when the party associations were reversed some 5 years ago, because a group resenting its outgroup wielding power is the most unsurprising dog-bites-man event.
At the same time, neither side is willing to criticise authoritarianism by their own, both because they do not want to "stab their soldiers in the back" in the culture war and because in practical terms more power to wield against the outgroup is too useful to forego. Would you still be happy to support a durable circumscription of the current US admin's ability to regulate local AI, if it also meant that no future Democratic administration could interfere with a cataclysmic AI-driven campaign of right-wing misinformation and propaganda that is threatening everything you hold dear?