Unfortunately, the practice of using animal body parts goes back for thousands of years and probably a very difficult habit to break. On the other hand, Chinese medicine is coming more and more to the forefront of medical practices used and adopted by the AMA. When I was in Taiwan, Bangkok and Korea I could buy those items on the open market.
You can buy those things in Chinatown Boston, but it’s still not done right. The animals didn’t all have to go extinct. That’s what makes the whole business stupid, all profits and benefits are erradicated.