[] Demonstrate Massive and Total Remorse
[X] Withdraw from the Tournament
[X] Counter-Infiltration
edit: vote change
The reasoning for Counter-Infiltration didn't change. The Infernals remain a potential threat that we should get a handle on. Killing Polemgaos only reinforced the previously suggested avenue of confrontaion via intimidation.
Displaying remorse is fine as long as internally it does not stem from actual guilt. What is worrying is that recent write-ins, both for "I meant to do that" and Demonstrate Remorse, explicitely portrait Uly sad over killing the guy.
Either way, starting a civil war now doesn't sit with me well thematically. With Ulyssian's current standing, most of it will not only involve, but be decided by large military blocks. Meaning a lot of political maneuvering, gathering alliances in the near future; consolidating the power and stabilizing the Realm after the war. Politics...
Ulyssian will be a leader, one the central figures, yes, but not a power unto himself so early in his Exaltation. A major concern seems to the mounting strength of Dragonblooded opposition. But it's the same for Ulyssian, and considering his speed of accumulation of power, it would be safe to say he comes ahead of anyone else in that department. It is literally his thing. And unlike the other factions of the possible civil war, which have finite resources (limited by the Realm), Uly's potential is greater.
If after three months Ulyssian can beat one of the greatest Dragons in the Realm, why not wait a couple years and make him truly unstoppable? IIRC Zao's estimations of Realm's life expectancy were about a decade.
Also, the argument that a war right now will be resolved quicker is exceedingly optimistic. Neither of the outlined alliances hold enough power to guarantee a quick victory. The longer it lasts, the more it escalates, defeating the purpose of an early start of the war.
Lastly, we are not in a closed system. Our friends, the Infernals already showed us how deep within the Realm its potential enemies are settled. The war doesn't have to last a long period of time for them and other players to sense weakness and act. And that's that much more dangerous with our level.