"No religion is true, but some religion, any religion, is politically necessary. Law and morality are insufficient for the large majority of men. Obedience to the law and to the morals are insufficient for making men happy. […]Law and morality are therefore in need of being supplemented by divine rewards and punishments."
I'm 33 years old. 34 in January.
Also I hesitate to use the Election of 1912 as proof that Woodrow Wilson was popular around the country. Though he was popular in the North, with Theodore Roosevelt running as the nominee of the Progressive party, it distorts how popular he actually was. As you mentioned in other posts Taft and Roosevelt split the Republican vote and Wilson was able to win states that he probably could have not otherwise. For example, in 1912 Wisconsin was solidly Republican and yet Wilson was able to win its electoral votes.
A better barometer of his support in the North is the Election of 1916. In this election Charles Evans Hughes won every Civil War Union state, except Ohio, New Hampshire, and Kansas. President Wilson swept the Confederate states.
About that quote from Lyndon Johnson, I would say that he was still from the South; think of the saying "you can take the tiger out of the jungle, but you can't take the jungle out of the tiger." During his time as a Senator he indeed oppose civil rights legislation, but then saw the errors of his ways once he became President. If he did indeed continue to harbor racist views during his time as President, do you not think it is strange that he was willing to sacrifice the Democratic Party in an entire region for a demographic that he hated?