Here's a novel idea:

Instead of boycotting a business that promotes the "gay agenda" why not befriend a gay or lesbian person. Take them into your home. GET TO KNOW THEM AND LISTEN TO THEIR HURTS AND JOYS AND INTERESTS. Love them. Most, if not all, people know they aren't measuring up to God's standard and truth be told none of us can ever measure up. Boycotts do nothing for God's kingdom except divert attention from real evangelism. Be not overcome with evil but overcome evil with good.