5% is rather a modest number. believe me its more than that. I will know how racist Chinese are only if i can read Mandarin and start reading Chinese forums.
After you master mandarin, you'll find much to your surprise a lot of India fans who travel across India and post a lot of things about India. Majority are positive.
Frankly, hostility of some internet Chinese against India is nothing, absolutely nothing when compared with the hostilities to China from Internet Indians. Here are the internet sites I recommend you to read: ?, WWW.SINA.COM.
Some Internet Indians bellicoseness against China is amazing. A little bit pessimistic about the relationship between the two countries.