Things related to this seem to be religion and the state of the economy. One factor in the acceptance of gay people is that christianity is much less powerful n

Things related to this seem to be religion and the state of the economy. One factor in the acceptance of gay people is that christianity is much less powerful nowadays. Also, when the economy is doing badly it seems popular to find a scapegoat and that can be the gays or the jews or some such minority. These two things may not be unrelated. It seems that well-fed and reasonably happy humans are much less prone to religion.