Well, anyone who doesn't acknowlege that the Republican party tends to have a higher income bracket is being disingenuous. By the same token, telling anyone what they should do (as in take a different cruise ship) just because you may not agree with their political philosophy seems un-American in terms of respecting people's rights to make their own political decisions.
Just as implying it is "more American" to take the Regal Empress to Washington would be stereotyping. The Regal Empress is going to Washington because it is available - not for any other philo-theo-political reasons.
Anyway - what a lot people probably do NOT know is that the Holland America Oosterdam played a HUGE role in getting Sarah Palin on the Republican ticket.
The ship was carrying a group of right-wing think tankers to Alaska, including some FOX commentators and former Republican analysts and strategists. Sarah met them at the dock in Juneau, and for most of them it was their first meeting with her. She wined and dined them until the ship sailed almost at midnight, and it is said she made quite an impression.
Later, some of these same people recommended her to McCain, who had only met her once previously at a governors' conference.
That story comes from the New Yorker Magazine.
How John McCain came to pick Sarah Palin.
On June 18, 2007, the first group disembarked in Juneau from the Holland America Line’s M.S. Oosterdam, and went to the governor’s mansion, a white wooden Colonial house with six two-story columns, for lunch. The contingent featured three of The Weekly Standard ’s top writers: William Kristol, the magazine’s Washington-based editor, who is also an Op-Ed columnist for the Times and a regular commentator on “Fox News Sunday”; Fred Barnes, the magazine’s executive editor and the co-host of “The Beltway Boys,” a political talk show on Fox News; and Michael Gerson, the former chief speechwriter for President Bush and a Washington Post columnist.