a single UAV will always be as compromised as a single manned ac
Compromised? Well yes all design is a compromise
As compromised a single manned ac? I don't think so
The pilot plus seat, controls plus life support stuff weighs a hell of a lot more than the computers and comms needed for an equivalent UAV.
that means aircraft weighs less so less fuel - less weight again
less weight - less structural strength needed - less weight again
So just that factor saves lots of weight which enables better acceleration for the same engines, better endurance etc
Plus there are other factors (e.g. political cost of losing one, training costs)
OK so a UAV has disadvantages for some roles, but more many roles they have massive advantages over manned aircraft