inclusionism; inclusivism
A philosophical or theological stance that advocates including diverse viewpoints or groups. Often contrasted with exclusivism.
His religious views are based on inclusivism.
In this debate, inclusionism and exclusivism are in opposition.
Exclusivism; the opposite stance of excluding others or other beliefs.
Comprehensivism; similar in meaning but 包摂主義 often carries a nuance of actively incorporating elements into a system.
Compound of 包摂 (ほうせつ, 'subsumption, inclusion') and 主義 (しゅぎ, '-ism'). The exact historical derivation is uncertain, but it likely emerged as a translation of Western philosophical terms.