Won't that go against their homegrown Rafale fighter jet?

Is there any other country in Europe that kept its own sovereignty like France? Maybe Sweden and Finland (if we do not consider nuclear cover)?

Sweden's Gripen is dependent on US engines...

Check where good percentage of europes (and for the record gloval as well) small arms ammo comes from. ;-)

(Sellier & Bellot and no, it is not French)

We're uniquely suited to not support the F-35. Not unless you swap out the engine for a Safran one, change the avionics for Dassault's, rip out the rest of the electronics for the Thalès stuff and replace the ordnance with MBDA's.

We'd keep the frame, but Serge Dassault and Charles de Gaulle would probably smite any French mechanic coming within 20 feet of a F-35 to do anything but dismantle one for its secrets.

Which is exactly the steps a European power needs to take in order to support an F-35 or similar aircraft. Remove the foreign made equipment you can't support and put your own domestic equipment, or at least put something sourced from the EU on it