Please don't send your passport bros to Singapore.
I can't criticize her for raising the issue of passport bros, but her view about SG women being of higher financial status and therefore immune to lower class foreigners is only partly true.
The phenomenon of passport bros or WMAF in Asia is partly one of economic relativity. The reason why poor passport bros are an issue in poorer countries like Thailand or the Philippines is that their mediocre western wealth is relatively high compared to some locals.
Singapore is indeed one of the most expensive countries in the world (but the Crazy Rich Asians depiction is an incorrect stereotype), but the white men in SG have historically been high income earners who were part of wealthy multinational corporations i.e. expatriates. They have relative economic advantage, just like the poor passport bros.
It is also not true that whiteness carries no special privilege in SG. The research into Pinkerton syndrome and employment hiring is a good example. While the great majority of women in SG are not sarong party girls, the fact that some still exist even today is already a blight given SG's colonial history.
Looking at intermarriage rates in SG, white men make a tiny minority but punch above their weight in representation, as is the case for many ESEA nations. The last thing SG needs is more white men, whether poor or rich.
(Note, she's says ang moh guy, not an "animal guy", but what's the difference, lol.)