Unpopular opinion : You can only blame colonizers for so much.

You're completely negating the cultural and psychological effects of colonisation on a subjugated people, negative effects that last for generations. There's been many psychological studies on its impact. The National Geographic published an article on it in 2019 (reprinted in 2023):

"However, coercion and forced assimilation often accompanied those gains, and scholars still debate colonialism’s many legacies. Colonialism’s impacts include environmental degradation, the spread of disease, economic instability, ethnic rivalries, and human rights violations—issues that can long outlast one group’s colonial rule.

As South Asia historian John McQuade writes, “It takes a highly selective misreading of the evidence to claim that colonialism was anything other than a humanitarian disaster for most of the colonized.”"