He has no Bourbon titles. He names himself
Duc de Touraine,
Duc d'Anjou and
Duc de Bourbon, he names his sons
Duc de Bourgogne and
Duc de Berry, all historic French titles, but in essence his only link to France is his grandmother Emmanuelle de Dampierre.
His far ancestor Philippe de Bourbon, Duc d'Anjou solemnly renounced all his rights on the throne of France, for himself and for all his descendants. This has been notarized in legal documents and is ratified by all powers of the time. In front of witnesses, during a public ceremony, Philippe - Felipe V - solemnly swore with his hands on the Bible.
This strict separation of the two thrones was a condition by the powers. Thanks to this the Bourbons could gain the throne of Spain. When Luis Alfonso fights the legitimity of all this, he is in essence saying that his ancestors as Kings of Spain were "illegal" because they became King thanks to the very same acts and treaties he claims to be null and void...
When Luis Alfonso de Borbón is the rightful King of France, then I am the rightful Farao of Egypt... Come on... he is a comediant and he knows it. It is the same nonsense as the De Bourbon de Parmes creating Spanish titles, which are not recognized by anyone else. Luis Alfonso also is not the ainé des capétiens (the most senior male in the House of Capet), that is Charles de Bourbon-Busset, Comte de Busset (who was one of the guests in Souvigny, this weekend, so it seems).