Other than him, it seems to be all Chinese people. (I wonder how that happened.)
Perhaps one may need to understand something about Malaysian demographics...
1. Firstly, the ethnic Malays, who are the largest ethnic group and by constitutional definition are 'automatically' Muslims as well, so the equation is Malay=Muslim, do not normally visit other religious houses of worship nor get involved with anything that is non Muslim religious activity, mainly due to a present conservative Islamic authority and certain ultra Muslim politicians playing up on vested agendas making this a 'sensitive' issue.
In lieu of the above, non Muslim religious activities & participation are off limits to them and in fact, non Muslim religious houses of worship have to include words like 'For Non Muslims Only' on their pamplets and publications to avoid any untoward incident.
Even if any Muslims (be they Malays or from other races) were to walk/visit into any non Muslim houses of worship, defensive caution and alert is necessary although one cannot bar them from entry.
The same deal applies to Muslims of other ethnic origins.
2. The two biggest Buddhist communities in this country are the Theravadins (Sri Lankan, Thai and Burmese streams) and Chinese Mahayanists (Pure Land, Ch'an and Tian Tai). The Tibetan Vajrayanists (all 4 main schools are represented here) are a smaller grouping compared to the other 2. So there you have it that the lion's share of the pie goes to the former. Fewer are those who would practice a kind of a pan Buddhism or what some describe as cross tradition. There are other East Asian Buddhist trads here like the Korean Zen under Kwan Um Zen School and Nichiren Shu.
3. Yes, the main core of their members are mainly from the Chinese community but that's because...
a. the Chinese are the second biggest ethnic group in this country and are most easily available (depending on location and etc)
b. but occasionally you get to see Eurasians, they have invited foreign visitors as well from time to time... look out for their events
c. other smaller ethnic groups like the Sri Lankans, Thais and Burmese are mainly Theravadins, the Korean Buddhists usually would attend one Kwan Um Zen temple in town, the Japanese would look for the Nichiren and so forth...
4. As far as I know, they open their doors to anyone regardless of creed, color, religion and so forth, so I doubt it's an exclusive 'Chinese club' going on there, only that demographics are at work and it's not easy to attract people to Dharma and so forth... its quite competitive lol