to be fair historically the catholic church was fighting for the indigenous communities long before

Pastorale officium in 1537 which excomunicated any one who particiapted in slavery how ever this had to be tonned down due to the spanish king not liking that the weak position of the pope and the last time a spanish army came to italy in 1527 rome got sacked hard , hence Sublimus Dei in 1537

Commissum Nobis in 1638

Pope Innocent XI condemed both the african slave trade and mistreatment of indigenous people

and the many locals like de casas among others who also fought against this to be fair yes other church officials did also actively commit abuses