From https://www.un.org/en/observances/anti-islamophobia-day
What is Islamophobia?
Islamophobia is a fear, prejudice and hatred of Muslims that leads to provocation, hostility and intolerance by means of threatening, harassment, abuse, incitement and intimidation of Muslims and non-Muslims, both in the online and offline world. Motivated by institutional, ideological, political and religious hostility that transcends into structural and cultural racism, it targets the symbols and markers of being a Muslim.
This definition emphasises the link between institutional levels of Islamophobia and manifestations of such attitudes, triggered by the visibility of the victim’s perceived Muslim identity. This approach also interprets Islamophobia as a form of racism, whereby Islamic religion, tradition and culture are seen as a ‘threat’ to the Western values.
Some experts prefer the label ‘anti-Muslim hatred,’ fearing that the term ‘Islamophobia’ risks condemning all critiques of Islam and, therefore, could stifle freedom of expression. But international human rights law protects individuals, not religions. And Islamophobia may also affect non-Muslims, based on perceptions of nationality, racial or ethnic background.
Read more by visiting the UN’s website.