This is a direct attack on Indians and makes it look like all Indians are scammers. I won't agree to that because there are lots of good people in idea who I have worked with and they delivered efficiently. I will not also allow you have the notion that scammers are only found in India because there are scammers in every country of the world. Therefore, try and refine your statement so that it does not sound racist as someone has already mentioned.
You made very important point and I get why you feel that way. You are right to say that it is not fair to say all people from one country are same especially in negative way. It is wrong to think that everyone from same place is like that. Fact is that you have worked with good people from India who did their jobs well shows that those kinds of big negative statements are wrong.
It is also important to keep in mind like you said scams do not just happen in one country. There are dishonest people everywhere in world. So it is not right to blame one group of people.