The Americans ain't removing any kill switches. Buy 36-48 f-35I's with meteor in the interim and focus on amca. Reality is with tejas the Americans have lot of arm twisting abilities because we use the americunt engine.I am not against US fighters in IAF or IN. But this autonomy thing is a huge contentious issue for us.
NGAD and B-21 for us, I'm all game. F-35, no problem. Just remove the kill switch and allow us to use it as we want and don't mind it too.
But realistically, the above scenario doesn't look probable or possible. So only reaslitic 5th gen we can procure this decade to counter J-20 is Su-57M. Period.