Why did some members leave the Social Democratic Party of Germany over reforms to unemployment benefits and health care?

During the second term of the Social Democratic Party of Germany (SPD) government, the party faced significant internal dissent due to its inability to revive the stagnant economy or reduce unemployment. In response to these economic challenges, the government pursued policies that included cuts to what many party members considered "sacred" social programs, specifically unemployment benefits and health care.1

These reforms led thousands of party members to leave the SPD in protest. This dissatisfaction eventually resulted in some former members forming an alternative political party under the leadership of former SPD leader Oskar Lafontaine. This new movement later joined forces with the eastern-based Party of Democratic Socialism to form the Left Party.21