No this would not make more sense.

Grids are not set up to move significant percentages of national consumption over longer distances, and expansion is slow, expensive and prone to nimbyism.

Countries already struggle to move electrical energy inside their own borders (e.g. Germany: north=>south), shifting double digit percentages of national consumption across Europe is not gonna happen any time soon. Germany alone plans to spend at least ~€100bn over the next decade on this (internally, not on connecting Spain!).

Much more effective to focus on local generation first than to try and rely on slightly better conditions for solar panels half a continent away.