Hear hear!If you are the GM and the majority of your players want to play evil characters, you have only have a few choices:
1. Let them play the characters they choose, and switch your game around to make sure you have pushes and pulls for their types of characters (altruistic push/pulls don't usually work on amoral maniacs).
Most of us spend our days being good guys in one way or another. We give that customer a break, handout that spare change, open a door for that old lady and get to work on time with a regulation haircut and a clean shirt. It is good stuff to be sure but it is damn hard work.
Every now and again we just want to pull that trigger and watch the lead fly. Or how about that NPC that really cheesed us off and nothing would be funnier that a little explosive decompression in that section. The best part is that it is guilt free! Nobody gets hurt and satisfaction is had.
After all the characters are not us, they are fictional characters and sometimes they need just need to be evil.
Yep, good players will MAKE it work. I have seen it happen.I'll allow players to play what they what normally. But if you've got a bunch of players whose characters will clash because of their divergent names & I do try to caution them to find a reason why they work together