He started to drag India and even released a diss track, made it look like its T-Series/India vs rest of the world. I think its a deliberate ploy to drag India since he can pull more subscribers that way. There are lot of live count stream tracking the subscribers between pewdiepie vs T-Series. On the chat i could see lot of hate from these kids like lets beat up Indian kids on school & lot of ethnic hate. I know these are something you can't avoid in Internet and best to ignore. But i can't help but feel bad for Indian kids living abroad since most of his subscribers are kids/teens and they can be easily influenced by these sort of campaigns.
We can't blame pewdiepie nor expect him to act mature even though he has more than 70 million subscribers. But youtube needs to have some sort of policy on subscriber campaigns to avoid these type of scenarios. If not for all at least for influential youtubers.