Try it sometime, its fun.
Find a far leftist who hates imperialism and colonialism
The issue is they only hate these things when white, judeochristian, western capitalists do it. They either don’t care or actively support imperialism and colonialism when anyone else does it.
Basically they think they hate imperialism and colonialism, but they only care when in-groups do it. Once the out-groups do it they either don’t care or are in favor of it.
Ask them how they feel about the USSR imposing an imperialisitic empire on eastern europe, and once eastern europe was able to escape they ran to join NATO.
Ask them how they feel about the fact that Islam originated in Saudi Arabia, then violently colonized the greater middle east, forcing people to convert to Islam by force. Afghanistan used to be buddhist. Iran used to be Zoroastrian. Syria used to be Christian.