I think you are right ... but the difference between the Bushes is the difference between the old and new Republican parties.
The Republican party that the elder Bush came from was a far more idealogically diverse bunch of folks. He was a centerist in between the likes of Rockefeller and Goldwater.
The younger Bush is a product of the party that combines a reactionary attitude toward contemporary America that makes Barry Goldwater look like a RINO with the ugliness of the Dixiecrats welcomed into the party by Mitchell/Nixon and company, with, of course God on Their Side because Jezuz told them they were the only true Americans on The 700 Club.
It's gonna get ugly.