Where are those Western men meeting Asian guys in Asia? Rentmen? Other escort sites? Massage spas or adverts? On the beach?
When I travel to Asia, I meet people through friends or activities. At concerts. On campuses. You can even meet people at the food courts which are everywhere. Chances are I'm not going to find a sugar baby if I learn first about their family, occupation, education, etc. If someone from the Philippines or Ghana or anywhere else contacts me out of the blue on Romeo or another meetup site, I pretty much know they're a gold digger.
Western men who look only in the wrong places are going to find the "wrong" boyfriends.