there are more realistic choices (left, left/green, far left, conservative (but very centrist, even sometimes a bit left-leaning), liberal (unfortunately economic-liberal) and idiots), also if you don't vote for a mainstream party there is a real chance that they might make it (threshold is 5%). In the last years we saw more political experiments in the form of new parties. On local elections there is even more choice, depending on the state. It's still not electing policies, but there is one party proposing such a plan (pirates).