Please get someone to read this for you slowly. My stepdaughters took the usual four year teacher training course and came out knowing as much as the average 13 year old English student.
I divorced my Thai wife because of her greed.
'Generalizations like you said, "This are slow learners" are simply wrong.' as is your expression.
'My Thai is better than their English' should have suggested I am a competent Thai speaker far more than my Thai acquaintances are in English.