Whichever party successfully marries conservative cultural identity with socialized medicine, bank regulation, CEO salary regulation, and a platform of labor/manufacturing revitalization will win in a monumental landslide for decades... We're talking on the level of the Democrats from 1932-53 or the Republicans from 1968-1992.
SRD, 'conservative cultural identity' is subjective -so just what do you mean by it? Most Americans support gay marriage, don't want Roe vs Wade overturned (though they would like to have abortion regulated along European lines), generally agree we haven't gone far enough on gender equality, and view immigrants positively. Unless you are referring to gun control.
Social conservatism is different from cultural conservatism. Cultural conservatism is issues like immigration, anti woke and anti globalization. Trump and other secular nationalist European parties emphasize cultural conservatism and downplay social issues.