Browsing through List of largest political parties, I noticed that the ÖVP in Austria has 600,000 members (2017), or 6.8% of the population. This is much more than any party in other European democracies. For comparison, the next largest party in the EU is the Romanian PSD (509,000 or 2.55%), the Italian Democratic Party (412,675 or 0.69%), French Renaissance (411,892 or 0.64%), or German CDU (371,986 or 0.44%; the sister party CSU had just over 1% in Bavaria in 2019). The only other parties...
