Would a native speaker of Spanish confuse "quince" and "quinta" ? I do not think so.
This hymn of abuse has all the hallmarks of an outsider with his own agenda.
The combatants of the First and Second World Wars have made their peace. The Spanish have made their own internal peace . Why is it that foreigners seek to keep alive the bloodletting of a civil war which was none of their business in the first instance.
Go away and leave us alone.
Jaramá