There is an alternative. Vote in the primaries for whatever party is dominant in your district/state. And encourage your friends to do so. Primaries tend to be thinly-attended, and the people who currently vote in them tend to be the most active (read: extreme) voices for their side. They're the reason why general elections seem to boil down to two bad choices; it's because the crazies get to pick who's on the ballot. If you're not voting in primaries, then you're ceding all that power to extremists.
FWIW, I already do this.
The more that wars of aggression and nuclear threats get rewarded, the more of them the world will see, increasing the odds of larger scale violence.
Turns out, maintaining a network of strong allies has long term positive benefits.