From the Public Religion Research Institute:
The vast majority of Americans (70%) favor allowing gay and lesbian couples to marry legally, compared to 28% of Americans who oppose it. Majorities of Democrats (80%) and independents (76%), as well as half of Republicans (50%), support same-sex marriage.
White evangelical Protestants stand out as the only major religious group in which a majority opposes allowing gay and lesbian couples to marry (34% favor, 63% oppose).
Majorities in every other major religious group support marriage equality, including 90% of religiously unaffiliated Americans, 79% of white mainline Protestants, 78% of Hispanic Catholics, 72% of members of non-Christian religious groups, 68% of Hispanic Protestants, 67% of white Catholics, 57% of Black Protestants, and 56% of members of other Christian religious groups.
More than eight in ten Americans (83%) favor laws that would protect gay, lesbian, bisexual, and transgender people against discrimination in jobs, public accommodations, and housing, compared to only 16% of Americans who oppose such laws.
Majorities of Democrats (94%), independents (85%), and Republicans (68%) favor nondiscrimination laws that protect LGBTQ people.
Substantial majorities in every major religious group favor nondiscrimination laws that protect LGBTQ people, ranging from 59% among white evangelical Protestants to 92% among religiously unaffiliated Americans.
— The Hill (@thehill) October 21, 2020