Acceptance of diversity is declining particularly sharply with regard to ethnic origin and religion. Our expert Ferdinand Mirbach assesses the key findings of the Diversity Barometer 2025 – and also outlines what we can do to promote social cohesion.
Social diversity is a reality in Germany. At the same time, however, our ability to live together amid diversity is under enormous pressure: a constant stream of new crises is wearing people down or overwhelming them. The economic downturn is fueling fears of loss and leading to protectionism against others, especially “foreigners.” The increasing individualization and visibility of formerly marginalized groups is making some people uncomfortable.
The Diversity Barometer of the Robert Bosch Stiftung is a representative survey on social diversity and cohesion in Germany. It provides data on attitudes toward the following dimensions of diversity: age, gender, disability, sexual orientation, socio-economic weakness, ethnic origin, and religion. For the 2025 Diversity Barometer, around 4,800 German-speaking individuals aged 16 and older were surveyed online. The results are compared with those of the 2019 Diversity Barometer. The study was designed and analyzed by Constructor University Bremen. Among the authors is Dr. Ferdinand Mirbach, Senior Expert and Diversity Officer at the Robert Bosch Stiftung.
This is not without consequences. Acceptance of diversity in Germany has declined significantly in recent years, as our representative Diversity Barometer study shows. According to the overall diversity index, based on a scale of 0 to 100 points, the value for the acceptance of diversity in Germany currently stands at 63 points. This is well above the scale median of 50. At the same time, however, this value has fallen by five points compared to 2019, when the overall diversity index for Germany was still at 68 points.
This trend can be observed in (almost) all federal states. Particularly striking is the fact that acceptance of diversity has declined more sharply in western Germany than in the east in recent years, with the west now approaching the once poorer values in the east. A particularly sharp decline can be seen in the city states of Hamburg, Berlin, and Bremen—once strongholds of acceptance of diversity.
Looking at individual dimensions of diversity, the acceptance of different sexual orientations and, in particular, different ethnic backgrounds and religions has declined significantly, in line with dominant public debates. Acceptance of ethnic diversity has fallen dramatically, with a loss of 16 points. These issues also exhibit a particularly high potential for polarization between different groups of people and for social division.
There is also even less acceptance of socio-economic weakness than in 2019. The picture is more encouraging for the other dimensions of diversity, namely age, disability, and gender. Here, acceptance levels have remained stable and in some cases even improved.
The study of personality patterns, which was also part of the investigation, provides some clues about which factors influence individual acceptance of diversity. According to the study, the strongest positive influence is an individual's capacity for empathy, i.e., the ability to put oneself in other people's shoes, understand their circumstances, and recognize their needs.
On the other hand, a pronounced protectionism of prosperity is particularly detrimental to the acceptance of diversity. This refers to the unwillingness to share socially generated goods with other stakeholders. However, the study also shows that people who live in a heterogeneous environment or consciously seek out such an environment are more open to and positive towards diversity.