Not being spaniard (God forbid ) I guess for Franco, the ennemies of Spain, at the time (1975) were mainly the communists - today a species in extinction but replaced by Podemos and other extreme-leftist groups - and socialists.

Also the separatists, specially the Basques and (then not so active) Catalonians.

And those who opposed to the founding pillars of the society, the Church and the Family, legally based, of course - don't think of those modernities of non-married couples and even less of gay couples .

Order, Tradition, Morals.