Marriages that cross racial and ethnic lines have become more common in the united states, although most u. s. marriages are still racially and ethnically endogamous. what factors might discourage exogamy?

The answer is "Facing ostracism from within one's tightly knit community".

Endogamy is the act of wedding inside one's gathering as to race or ethnicity, instruction, religion, station, a specific scope of family, geographic area, or different qualities. The act of endogamy in different structures happens in numerous spots on the planet.