The situation of Indigenous ethnic minorities in Myanmar and Cambodia is complex and varies significantly between the two countries.
In Myanmar, many Indigenous ethnic minorities, such as the Kachin, Shan, and Karen, have faced systemic discrimination and armed conflict with the government. There have been ongoing struggles for autonomy and rights, leading many to flee as refugees. The notion of a "policy of tolerance" toward Indigenous peoples in Myanmar does not accurately reflect the widespread issues of oppression and violence faced by these groups.
In Cambodia, Indigenous ethnic minorities tend to be marginalized, with issues related to land rights and development causing significant challenges. Many have faced displacement due to economic development and agricultural expansion. While some groups have been able to negotiate their rights, others continue to face oppression.
Given the choices you provided, the most accurate response is:
"Many Indigenous ethnic minorities in Myanmar are oppressed by the government and have fled the country, but today Cambodia has a policy of tolerance toward Indigenous ethnic minorities."
This reflects the current challenges faced by Indigenous minorities in Myanmar and acknowledges that Cambodia has made some efforts toward addressing the rights of Indigenous groups, although challenges remain.