Ah, unscrew Catch 22
I guess you've fiddled with both levers on the manual locking and opening mechanism, and checked the kiddi-proof rear locks are'nt enabled, though that shouldn't be relevant.
I wonder if you've accidentally enabled two-stage unlocking. That unlocks only the drivers door at first, and leaves the others double-locked, which would be why nothing works. Here's the relevant page of the manual:
https://www.carmanualsonline.info/jagua ... anual/3#25
I think that would give exactly the symptoms you describe. At least you're safer against carjacking...
If that doesn't help, the following thoughts may lead somewhere you don't want to go, so beware...
If the handles move freely, unless you at some stage forced the handle against a strong resistance and it suddenly gave way, the cable is still in place and getting behind the door card is unlikely to help, nor is WD-40 - the problem will be behind the water splitter too, and probably electical, not mechanical. If it did shift under the application of unreasonable force, you've probably pulled the cable sleeve end out of its plastic retainer, so pulling the handle just moves the whole lot, rather than the cable relative to its sleeve, in which case what follows might help you get a pair of pliers on the inner cable.
The bottom screw is a torx head IIRC. I don't know the clearance, but I guess there's no chance of getting an angled torx screwdriver on it.
For the purposes of oiling/fiddling with the lock mechanism, you might be able to displace the top of the door card to get enough space to disconnect the cable, assuming the other screws are out. The plastic clips are push-pull things, rather than any twisting or sliding, so pulling the card might work. The "card" is actually a large decent plastic moulding; behind it is the water splitter - in old Jags that was a sheet of polythene held in place with tape or sealant; in this version, it's another big decent plastic moulding, carrying the sockets for the plastic clips mentioned above. I guess the card should bend enough to see the back of the handle.
There are 3 clips across the top: one towards the front, and two more towards the back.
There are 3 more evenly spaced down the rear side of the door, and one at the front just above the speaker, but you'd not need to move that.
If you can get behind the card, as aformentioned, the lock works via the same sort of cable and end fittings as a bicycle handbrake; you may be able to get a pair of pliers on it.