The cleansing was more political and religious in nature rather than based on based on biological traits.
Also, the regime had their own version of eugenics https://en.wikipedia.org/wiki/Antonio_Vallejo-Nájera . The fascist regime in Spain claimed that those who opposed them where genetically defective, racially inferior and had to be eliminated.
Those 120000 still unidentified victims are not the result of combats but rather of killings of civilians. People would be routinely put in concentration camps, subjected to forced labor and killed for not being spiritually “pure” according to the standards of the fascists (non catholic, ahteist, non fascists, homosexuals, etc.)
It is estimated that 30000 children where separated from their parents at birth to keep the race “pure” and prevent them from being infected by their parents.
Those who the fascist deemed inferior and were not killed where sent to concentration camps, banned from public life, starved in prison, not allowed to have jobs, their properties confiscated.
To this day this crimes have not been investigated due to the strong opposition of the Spanish state, because the fascist were allowed to stay in power. The heirs of the criminals are part of the power structures of Spain, the judiciary system, the deep state, the police and the army.
