なんか知らない外人が俺のtwitterにいきなりこんなリプライしてきたんだけど何て書いてあるか分かる人いる？

Hi, I am an American who once stayed in Japan and then was learning in a Japanese language school. Unfortunately enough, the epidemic of corona virus obliged me to cease studying Japanese and to return home, but I found an unfavorable trait of Japanese people in the school.

In my class, students came from various countries, the West, Southeast Asia, and China. Teachers, in general, treated us Euro-Americans like customers more than like students. Their bahaviour looked humble rather than courteous.
Totally unlike that, as for the students from Southeast Asia, teachers obviously dealt with them as if they were children pupils. I sometimes witnessed a teacher order a Vietnamese student to fetch an implement at the ba＊ of the classroom.

It is sometimes heard that the people who like to rule others like the job of teacher, its salary being low in spite of needed knowledge. The Japanese teachers I saw might happen to be of such a kind of men. But it is clear that not only those teachers but Japanese people in general think that Southeast Asians are inferior to Japanese.