It’s not “my interpretation” it’s just a reasonable interpretation of what has actually happened. And not just in Thailand. Cicero, for one had criticized their behavior.
Kevin, would you consider southern whites' descriptions of dislike of blacks of former generations as weight toward perfidy of blacks? Where I live Chinese workers were brutally driven out of town en masse a century ago. The Chinese laborers were driven out because they were disliked, even though they had done nothing to deserve it. Is the fact that ethnic groups are disliked evidence that they deserve it? Of course not. That seems to be your logic with the Thailand and Cicero examples? Isn't that blame-the-victim logic?
Essentializing ethnicities or major world religions or races in demonizing ways is so deeply-rooted and wrong. As Ashley Montagu said in the title of his book debunking 19th century scientific racism: race was "man's most dangerous myth". Essentializing and demonizing ethnicities or religions, variant of the same thing.
What did blacks do to whites to deserve Klan treatment? Nothing. What did Jews do to European nations to deserve thousand of years of anti-Jewish pogroms? Nothing. What did those Chinese families put on trains and driven out of town by people cursing them and threatening death if they did not get on the train, do to deserve that? Nothing. What did Jews do to the Romans anciently to deserve Cicero's condemnation? Refused to knuckle under and be good Roman citizens is what it came down to.
Of course there are always things claimed, traits and essentialisms, that are wrong with the other. There are always anecdotes, anecdotes which collect grievances. Once such beliefs are there about whole classes of others, no logic, no reason, nothing on earth can dislodge it, until it comes from inside, awareness that, speaking metaphorically, we are all God's children, every human being on earth.