Honestly, i don't really get what the issue is, everyone has the same information as everyone else. True you may not agree with their decisions on who to vote for, but it's their decision, they have to live with the consequences, just like everyone else.
A Vote is something that you choose yourself, you deliberate, and consider what the best options would be, some are better than others. Just think of this as a learning experience, you'll know who not to vote for next time.