He was not 'sympathetic to/toward' their cause. [=he did not support their cause]
The book doesn't really have any 'sympathetic' [='likable'] characters.
I didn't find the hero in the movie very 'sympathetic'.
(..) for the Prime Minister... ' They got in, yeah? Do you think I'd be here if they had? Listen, coverage is very sympathetic. Can't think about coverage now! But it's on-side? Strong undercurrent of sympathy. Every poll indicates understanding, disgust with the (..)2011 TvShow: Black Mirror Title: The National Anthem Season: 1 Episode 1