There is nothing immoral about a carpetbagger is the voters want the carpetbagger. Heck, California needs some carpetbaggers. The carpetbagger charge bores me. We are one country by and large, and many places would benefit from fresh talent. Of course this particular candidate in this particular locale, is sort of like, well, I won't go there.
Let Bill Clinton declare his candidacy for Bob Graham's seat before he actually moves to Florida, and you will see the "immoral carpetbagger" charges fly in this forum.