The answer is no and yes.
Things are not always black and white.
Other people is always spread as mean of fueling people rage.
Roman empire and persian empire has always resented Arabs in general even christian arabs were at the bottom of ladder.
However, after downfall of roman empire, the europeans were shocked and start preaching hate against arabs and islam. It is now academically a debate, whether muslims were as bad Europeans project because text of armenian christians are showing a different picture.
It was narrative against Islam inherited from Europeans for 300 uears to justify Crusades.
This hate was amplified Ottoman-European wars, and Orientalist stereotypes. However, post-9/11 fears of terrorism amplified institutional discrimination and xenophobia in the West.
European colonial powers (e.g., Britain, France, Italy) dominated Muslim-majority regions in Africa, the Middle East, and South Asia, often exploiting resources and suppressing local governance. This created lasting resentment and resistance, as seen in movements like Algeria’s struggle against French rule.
Colonial powers sometimes dehumanized Muslim populations to justify control, leading to systemic violence and cultural erasure. For example, France’s brutal suppression of Algerian independence fighters (1954–1962).
Yes, in recent times, Islamophobia has been caused more due to Muslim activities.