P is part Hispanic and fully ethnocentric. From an August 2, 2000 Reuters article:
George P. Bush is the son of Florida Governor Jeb Bush and his Mexican-born wife Columba - which makes him the nephew of the Republican candidate for President. At a recent Republican rally he spoke in fluent Spanish about how his mother had instilled in him the values of Cesar Chavez, the Chicano who organized farmworkers. "She told me we have to fight for our race, we have to find the leaders who represent us," he said. About his uncle the candidate [George W Bush], he said, "This is a President who represents the diversity of our society, who we can count on to change the Republican Party to represent our views."
In 2010, P founded Hispanic Republicans of Texas, a political action committee to promote Hispanics running for state and local offices
In 2007, P's decision to join the Navy Reserve was clearly at least partly political. Later that year, he joined the Fred Thompson team, while others linked to the Bush family joined with other presidential candidates.
In 2004, P spoke out against the Border Patrol's use of non-lethal weapons (pepper-ball guns) and eventually had to backtrack.
Per a Border Patrol spokesman: "[The pepper-ball guns] allow us to disarm migrants throwing softball sized rocks at agents, without using deadly force against them." By August 2004, 89 Border Patrol agents had been assaulted, including by "rockings", some organized.
George P. Bush called the use of those non-lethal weapons "reprehensible" and "kind of barbarous." P blamed their use on "some local INS (Immigration and Naturalization Service) guy who's trying to be tough, act macho". P said "there shouldn't be this use of arms" and supported "substantive reform so that folks can move back and forth" across the U.S.-Mexico border. On a related note, the Mexican government threatened to sue over those same non-lethal weapons.
The Bush family are concerned with their legacy and the dynastic nature of their family. George W. Bush allowing massive illegal immigration from Mexico might have been part of a long-term plan to change the demographics of the U.S. to make a presidential run by P easier. It's not difficult to imagine P running as a Democrat if it would better suit him.