This website was passed along by Luis (thanks!):
On March 12, 2012, the hashtag #ToMyUnbornChild became a trending topic. People used this hashtag to "tweet to" their future child. Here are 100 real tweets from real people — all within 24 hours — saying they would murder their child if he or she was gay.
And some samples (clic to make larger):
Click here for many more: link.
I'm still holding out hope that the proportion of people who feel this way is shrinking, and hopefully very quickly.