—Today’s knife attack in the Hamburg metro system, Germany, once again highlights a deeply concerning consequence of the mass immigration of Muslims into Europe. In my view, this is not an isolated incident but part of a much broader and escalating trend that has serious cultural and security implications for the continent.

—Over the past decades, countries such as Germany, France, Sweden, and Belgium have experienced a dramatic rise in their Muslim populations. According to Pew Research Center, Muslims made up about 4.1% of Europe’s population in 2016. If current immigration patterns continue, projections suggest this number could exceed 14% by 2050. In several European cities — such as Brussels, Malmö, and areas of Paris — Muslims already represent over 30% of the local population in certain districts.

—Simultaneously, Europe has witnessed a disturbing increase in jihadist-motivated terror attacks. The attacks in Paris (2015), Nice (2016), Berlin (2016), London (2017), and Vienna (2020) — among others — are undeniable examples. Many of the perpetrators were either first- or second-generation immigrants, often born in Europe but later radicalized through Islamist networks and ideologies.

—As a Christian, I find this trajectory deeply worrying. Peaceful coexistence between religions is ideal, but it becomes extremely difficult when one side harbors ideological or physical hostility toward the other. Reports from organizations such as Open Doors confirm a growing number of attacks on Christians in Muslim-majority neighborhoods across Europe. These are not isolated anecdotes — they form a consistent pattern that demands serious attention.

—Anyone walking through certain neighborhoods in Paris, Marseille, Cologne, or London today will observe significant demographic and cultural shifts. In many of these areas, traditional European culture has been effectively replaced, and Christian symbols are either unwelcome or openly attacked. This is not speculative — it is visibly happening.

—Given these realities, I believe that firm yet reasonable measures must be considered. Banning further Muslim immigration and expelling individuals linked to extremist ideologies may seem harsh, but these steps are increasingly necessary to safeguard the safety, culture, and identity of European nations. This is not about religious discrimination, but rather about national sovereignty and self-preservation. No country is obliged to accept immigration flows that threaten its historical and spiritual fabric.