Let's see about the idea that liberals have sought to expand liberty:
* It was liberals who imposed the income tax on all Americans in the early 1900s, an idea that was abhorrent to previous generations of Americans.
* It is liberals who are doing all in their power to defeat school choice. They don't want parents to be able to decide how their education tax dollars are used for their child, because the teachers unions oppose any threat to the corrupt, collapsing public school system.
* It was liberals who forced parents to bus their kids to schools 20-40 miles away rather than allow them to continue to attend their neighborhood school.
* It was liberals who made it illegal to simply post the Ten Commandments in public schools. Heaven forbid we teach our kids that it's morally wrong to lie, cheat, kill, and steal.
* It was liberals who made it illegal to have a traditional Christmas play in public school. (In my school, many of my fellow students were Jewish, and they enjoyed playing roles in the Christmas play as much as anybody else did, and nobody was "offended.")
* It was liberals who made it illegal to have a voluntary prayer before high school football games.
* It was liberals who made it illegal for kids to have voluntary teacher-led prayer in public school classrooms.
* It was liberals who made it possible for local governments to impose eminent domain to force you to give up your house against your will if the city or county wants to zone it for commercial purposes.
And now, in the name of "non-discrimination," liberals are trying to force Christian churches and businesses to host or service gay ceremonies against their will, even though gays could easily find other venues and businesses to host or service their ceremonies.
"Bigotry" is imposing your values on others to the point of forcing them to host or service ceremonies that you know they find morally offensive, when you could readily and easily find other places and businesses to host or service your ceremonies.