Note how the people that get blamed in these cases don't have much power to begin with, whereas topics involving economical inequality (and money in politics) put the blame on them. If you're a rich and powerful individual or company, it's a lot more convenient to focus on something like LGBT rights (where the blame can be put on poor/rural/uneducated folks) rather than taxes and political lobbying (where the blame would end up on bankers and large corporations).