One of the reasons why in Germany there's a 5% quorum to enter parliament. The only downside is that your vote is lost if you happened to vote for one such part

One of the reasons why in Germany there's a 5% quorum to enter parliament. The only downside is that your vote is lost if you happened to vote for one such party. That could be fixed by a preferential system similar to what's in Australia (if the first pick is <5%, take the second, ... repeat until all votes are accounted for in a party that's actually present). The current power dynamics are in favor of large parties (people voting for the a "safe" party that is the closest to them, instead of risking to lose their vote), so it's unlikely to change.