It appears that the vulnerability and fragility have taken root in the minds on the forum.
Any evidence?
Re the better done by existing, nope.
If, and it is a big if, it can be made to work it has enormous advantages over many other aircraft.
Helicopters are very range/height limited, plus 10t is the prototype. Try 50t.
Global hawk is all very well, but you need an awful lot of them to maintain permanent watch, and do you know how much they cost?!