India 1.324 billion
China 1.379 billion
Total 2.703 billion
70 million/2.703 billion = 2.59%
Does not seem such a large proportion?
The proportion might not be that great, but the raw number is. It’s probably about 40 million in China vs 30 million in India, because of China’s One Child, fewer girls get born overall, whereas in India girls have a slightly higher chance of being born and surviving, since parents can try again.
So while the percentage of extraneous men in each country isn’t that big, it’s still a lot of people. Add in that the imbalance (as noted in the article) allows women to marry up, and you end up with a bunch of lower-class men, mostly uneducated, who now have no prospects. That in turn magnifies the problems of violent crime etc, which go up anyway but will go up even more due to the demographics of the superfluous population.
India is at least trying to address this, with their Save the Girl Child campaign. That will help down the road, but won’t do anything for the men already in the population.