Tancredo hasnt split the party - a divergence in interests between pro-high-immigration big business and anti-immigration little guys has.
Civilization uses politcs. Politics is compromise. Those who refuse to participate will always lose because there is never "only one deal". If Tancredo won't negotiate, the democrats will. In fact, Tancredo predicted this in his "lipstick on a pig" article 15 months ago.
You, like many here, think Tancredo is the messiah to save western civilization. He is not.
He is Pat Buchanan's protege. Just as Buchanan used culture issues to split the party to elect Clinton, Tancredo hopes to split the party to elect Clinton.