Undoubtedly there has been a change in attitudes within Thai society towards Thai women finding love with foreigners and today many single Thai women from educated backgrounds with good jobs, often government jobs, seek love with foreigners.However it would be true to say that there is still a conservative voice among some quarters of Thai society that disapproves.
Love in Thailand is very much about respect and duty.
Some dismiss this notion and point out that every person comes from a different culture but that love is essentially the same the world over. Thai culture is a very strong and living one less influenced by external forces than perhaps any other.
There are deep but obtuse differences between Thai culture and foreign cultures.
What the author is writing about illustrates perhaps a desire by more conservative Thais to preserve Thai culture and close it off from foreign influences.
It is said often that foreign men should learn Thai culture before entering into a relationship with a Thai woman.