I think a lot of guys are turned off breeding small asian bottoms based on perception. I know that I had some preconceived ideas too. I figured that they were all ladyboys and feminine.
Then about 12 or so years ago I was cruising M4M ads on Craigslist. There were two guys looking for tops. One was a big white dude and he was looking for tops to gang fuck his smaller asian buddy.
That scene turned me on. They were in a motel and had guys lined up all day. When I showed up the bottom guy had been fucked by a number of guys and was cummy wet, and ready for more cock and cum. He had a masculine voice, a little attitude and was a slutty, hot fuck. Three guys were there while I fucked him. We traded off between the three of us until I had to split and I dumped a load in his hole. That really changed my attitude tword Asian fuck buddies.
Its fun to fuck a big muscle hole, but just as fun to be fuck smaller bottoms that are just as capable of taking cock and cum.