I hated Suzaku. He was delusional with his BS ideals, a hypocrite, self-righteous, and judgmental. He didn't practice what he preached. He kept up all his righteous talk with Lelouch and Kallen, how they should just forgive Britannia for their loved ones dying and fight for them because that would be "for the best", and that they shouldn't kill, but the second he someone he cares about is killed, then he gets a murder-boner that won't quite, all the while still preaching his no killing BS. He deserved a much more sever wakeup call then a simple "Wake up, the world won't change for you" to make him realize what a dumb*ss he was being.
And let's talk about his motive and his plan. He thinks it's better that Japan continues to be oppressed and live as slaves with no identity while being abused and mistreated because that will save their lives, and he's willing to kill people to make sure they stay in that position because that will ultimately save more lives. That would literally be like a Jew in the holocaust fighting for the Nazis and killing their fellow Jews to make sure they stay in concentration camps because that will save more lives. Seriously, screw Suzaku.