When the Dixie Chicks made some comments against George W Bush and the Iraq War it essentially ended their careers. The Republican supporters forced the Country Radio Stations to boycott their music. And they were done. So much for Americans respecting Freedom of Speech.
Although their next album sold well in real terms, it only sold a fraction of all their previous albums. They did win some Grammy's for it, but they were still shunned by Country Music Award shows and never won another award from them. The Dixie Chicks went on hiatus for years, and eventually reformed under a new name. They still perform but have a fraction of their success they previously had.
Given that Taylor was a big fan of the Dixie Chicks, it is no wonder she is not publicly political. She knows what happened to the Dixie Chicks.
Avril, the Anti-Britney is a good example for pretending as a teen she would never pose naked when after TBDT came out she became as hypocritical as ever and did the exact same thing. And so her career ended with many consecutive flops while the asian market keeps living the delusion.
Even if some of her best work came afterward 