How do you figure?
If there are 345 million people in the US and 78% are of voting age, that means there are 269.1 million eligible voters. The vote was 51.3% for Biden and 46.8% for Trump. Applying those ratios to the 18+ population of the US, that's 138.048 million Biden votes and 125.938 million Trump votes.
The population of NY is 19.68 million (78% = 15.35 million). NY voted 60.87% to 37.74% for Biden over Trump. Applying those ratios to the 18+ population of NY, that's 9.343 million Biden votes and 5.793 million Trump votes.
The population of CA is 39.03 million (78% = 30.44 million). CA voted 63.48% to 34.32% for Biden over Trump. Applying those ratios to the 18+ population of CA, that's 19.325 million Biden votes and 10.448 million Trump votes.
So, if we take NY and CA out of the calculation, there would be 109.379 million Biden votes (49.93%) and 109.697 Trump votes (50.07%). Hardly a "clear majority of Americans".
If we do the same calculation, but take out Florida and Texas, then Biden wins 53.1% to 46.9%. So, I think what you means to say is that outside of Texas and Florida the clear majority of Americans do think like DTEH.
Do you even math, bro?