You are underestimating the value of air defence. Soviet air defence was so dense that Americans had to change B-2s wing profile to allow it to fly low. Recently Chinese practiced low level penetration with J-20s(simulating F-35) and yet PLA AD shot down it.
Our S-400, MRSAM, Akash and other AD will work along with our BMD and IACCS and fight as one unit. Plus they would be integrated with our air and space based assets. Penetrating this would be real challenge for the Chinese and they would suffer huge losses.
Of course, they would try to saturate our IADS by H-6Ks firing long range cruise missiles from stand-off. This is a huge threat for us. Now this is where Rafale with its SPECTRA and Meteor comes into fray. If it shoots few H-6Ks, then Chinese would think twice before trying that technique.
To defeat the Chinese, our army, air force, AD and rocket force need to work as an integrated force. And rest assured that gov is doing what needs to be done.