Agreed, FCAS is perhaps a better choice for India than GCAP.
Of course, India is free to do things as it wishes. That is unlikely to be welcome, though, if it wants to join international programmes along the lines of FCAS or GCAP. The idea of those programmes is to produce 6G aircraft in the next 10-15 years, not in the next 25 or 30 or 35 or 40 years!
Tejas and AMCA are on track? If GOI thinks that, it is free to ignore the long history of that not being the case if it so wishes.
UK tried its best , so did Italy to get India on board the Tempest / GCAP program much before the Japanese came in .
The reason GoI / MoD / DRDO / ADA /IAF didn't pay much heed was they inferred India'd not be part of core development & instead relegated to ITC activities particularly for the S/w related issues .
This is precisely the reason we exited the Su-57 / FGFA program coz after paying our contribution to the program we weren't allowed access to the core program & the work share kept dropping. After years pf observation & putting up with the Russkies , we told them we're out & immediately after that the Russians came up / are still coming up with repeated offers sweetening the deal with every offer they make .
Besides the Su-57 wasn't shaping up into the program the IAF was promised or the way the IAF wanted. For starters , Stealth wasn't seen by the Russians as their top priority. In the meanwhile what happened was our own indigenous capabilities with respect to technology development , showed remarkable improvements with the result that our previous plans of becoming part of the Su-57 / FGFA program wherein our learnings from that program were supposed to feed into the AMCA program (which in the event didn't deliver for reasons explained ) was no longer required & the IAF decided to back the DRDO / ADA - AMCA program instead.
As far as the FCAS program goes from what I understand , le Francais are fed up of ze Germans & are continuing in the program only coz of the pressure Macron has brought to bear on them to resolve their differences & come out with a prototype ASAP.
The thinking is the moment Macron demits office , le Francais will drop out of the program like how they did with the Eurofighter program consortium more than 3 decades ago to proceed with the Rafale program.
They seem to have already prepared a Plan B to that effect. So where's the question of India being part of it ? Not that they've approached us & if they do , it'd be more of the same as with the Tempest / GCAP offer . You can guess what our response will be.