1) Please elaborate why it cannot be done. Contract issues? It is not technial challenge. Where there is a will there is a way. Look at China.
2) Jet fighters should not fly low within range of ManPADS/VShoRADS. If Su-35 has metallic skin then RCS would be high & SAM Pk would be high. But composite materials reduce risk like in Rafale. DIRCM can be added just like in Su-57. The wingtip jammers should focus on the SAM/AAM seekers.
3) Possible? Please talk to any engineering student on this. From engineering PoV, lots of 5th gen stuff is possible in 4th gen, that's why we call some planes as 4++gen.
Su-35 has already implemented MAWS in the same 6-axis positions as used by F-22's AN/AAR-56 & F-35's AN/AAQ-37. But how the optical sensors will use digital image processing depends on programming skills of engineers. You see a smart phone & CCTV cameras can identify bodies, face, ID the faces, differentiate b/w hmans & animals.
The Tesla car cam system is so advanced.
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Then military grade system is supposed to be much more advanced & smarter. Otherwise people are just lavishly enjoying goverment jobs, facilities, pension, etc.
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