Its is not a question if question if Mirage-2000 is superior than Tejas Mk. 2 or not. The point here is IAF is comfortable with Mirage-2000 when it comes to deep penetration strike missions. Tejas will have to prove its worth.
On paper MKI is also superior to Mirage-2000 yet we always use Mirage-2000 for strike missions (e.g. Balakot).
It also fall down to operation doctrine of the AF to decide what assets will be used for any operations and our current doctrine favors Mirage-2000.
Tejas Mk. 2 will have to make place in IAF's doctrine else
As you said AMCA is still far from realization and that is true but so is Tejas Mk. 2 (far from realization).
Atleast for AMCA we are seeing meaningful progress, the same can't be said for Tejas Mk. 2.
Finally IAF has no confidence in HAL to deliver anything be it Tejas MK. 2, AMCA or even Su-30MKI upgrades.
From IAF's prospective (which I believe to be valid on their end), all strategies and doctrine are to be developed with assets in hand or those you are sure will be in hand. You can't build operation strategies and doctrine on vaporware.
Yes, the MWF has still not flown.
But do you really feel that the task of bringing the MWF to fruition will be as difficult or even more difficult than bringing the AMCA to fruition.
The MWF is an evolution of the basic LCA mk1 design while the AMCA is an whole new design. Stealth shaping and use of radar deflecting /radar absorbing materials is a part of designing an 5th generation aircraft. Many other never developed before technologies like EOTS will probably be part of the AMCA.
So which programme has more chances of succeeding in the given time frame.
MWF or AMCA.
Nobody is trying to belittle the role of the M2000. But the IAF will and should plan for the future also. The MWF is a piece of the future.
A lot of people initially had deep reservations on the LCA mk1 but I believe IAF pilots who have flown the aircraft say it behaves even better than the M2000. Its easier to fly than the M2000.
Let the MWF come out and fly. I am sure once the IAF pilots get their hands on the plane they would be happy with the aircraft.
Please have faith in our aerospace community. After going through so much of trials and tribulations in developing the LCA mk1 I am fairly confident that with all the experience gained they would realise the MWF /LCA mk2 within the end of this decade.
Many would say that the IAF is the least receptive to indigenous efforts as compared to the Navy and even the Army. But after tasting success in the LCA mk1a and the coming LCA mk2 their opinions might change.
As far as the engine is concerned I fully agree that an indigenous engine should power the LCA mk1 and LCA mk2. I believe it is work in progress. Hope that we succeed sooner than later.
Perpetual dependence on imported war planes is not an ideal situation. Though our starting attempts at indigenisation may not be state of the art, we should persist and improve our products in successive iterations.
If we aspire to be a great power self reliance in defence is an imperative not an option.