Acting concerned in discussions would be a start. Choosing what services to use, what product to buy, what media to consume, not just because that's the easiest. Limit their involvment in this, even professionnally, if they can.
It doesn't need to be perfect. People have constraints, and life is hard.
But politicians and busines people don't care about being good or bad. They just follow the wind.
Now being gay is trendy, well, they are pro gay.
More people care about organic, they sell organic.
Just caring a little, demonstarting a little that we disaprove and want something else orient their decisions. Because their decisions are not driven by moral, it's just business.
Also, even if you don't do any of this, and I can believe I have to even state this, not teasing or shaming those who do would be an improvement.
