Funnily, a few days later, Cricbuzz carries a new article now where they credit KL Rahul for making that statement "whole country against 11 guys". Here is that new article -
A DRS-assisted reprieve to the South African captain cost India their composure at a crucial juncture, and hence the match and a shot at a historic series win
www.cricbuzz.com
I think all news has credited Rahul to have made this statement, and this is a pretty damning statement to make for a guy who's a vice captain and is being seen as a future leader. To me, this statement should ideally make him lose his vice captaincy status (its not like he's new to controversial statements - we can go back to his Koffee with Karan stint with Hardik that created a storm and got him disciplinary actions from BCCI).