Edited sentence: However, the very same freedom of speech and advent of multiparty democracy allowed a proliferation of nationalist and populist political parties like Liga Polskich Rodzin (League of Polish families) and Samoobrona (Self-Defence) both of which are represented in parliment (Sejm) having collectively received nearly 20% of the votes in 2005, and which employ xenophobic and anti-Semitic propaganda as one of their tools, often accusing their opponents of being a part of a Jewish-Communist conspiracy aiming to take control of Poland (called "Żydokomuna")