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arXiv · 2510.27248

The Role of Search Engines in the Amplification and Suppression of LGBTIQ+ Polarization

Ronja Rönnback·Chris Emmery·Marie Šafář Postma·Filip Milde·Jan Charvát·Henry Brighton
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Abstract

Search engines are used and trusted by hundreds of millions of people every day. However, the algorithms used by search engines to index, filter, and rank web content are inherently biased, and will necessarily prefer some views and opinions at the expense of others. In this article, we examine how these algorithmic biases amplify and suppress polarizing content. Polarization refers to a shift toward and the acceptance of ideological extremes. In Europe, polarizing content in relation to LGBTIQ+ issues has been a feature of various ideological and political conflicts. Although past research has focused on the role of social media in polarization, the role of search engines in this process is little understood. Here, we report on a large-scale study of 1.5 million search results responding to neutral and negative queries relating to LGBTIQ+ issues. Focusing on the UK, Germany, and France, our analysis shows that the choice of search engine is the key determinant of exposure to polarizing content, followed by the polarity of the query. Location and language, on the other hand, have a comparatively minor effect. Consequently, our findings provide quantitative insights into how differences between search engine technologies, rather than the opinions, language, and location of web users, have the greatest impact on the exposure of web users to polarizing Web content.

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Ronja Rönnback, Chris Emmery, Marie Šafář Postma, Filip Milde, Jan Charvát, Henry Brighton. 2025-10-31. The Role of Search Engines in the Amplification and Suppression of LGBTIQ+ Polarization. https://arxiv.org/abs/2510.27248

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