The rainbow flag partly has different colors than the natural rainbow, because the colors of the flag stand for certain things. The rainbow flag and the rainbow are two different things.
Regarding abortion:
My mother wanted to drive my sister and me. My sister was the result of a rape, and my father never supported my mother, so she was overwhelmed (he wanted abortion).
She did not abort us because the then German law prohibited abortions. Today I sometimes think it would have been better for us, she'd have driven us off!
Why?
Because of the lack of love, sexual abuse and the violence of her future husband, we had to suffer a lot. A suffering that determined our whole life.
Today, I think that women alone should decide whether they are capable and able to get a child, feed and educate them. For men usually keep out of the relationship with a child, demand selfishly a pregnancy break, or that the mother neglects her children in his favor.
When one is angry, one often says in anger things that one regrets with a cool head.
On the other hand, I understand his reaction to these Christians as a provocation to anger the Christians.
I've learned a lot about the discrepancy of transsexual and homosexual people, especially fundamentalist Christians, Jews and Muslims, since my ex-husband outed himself as a transsexual. And that is why I can understand his anger, even if I do not agree with his reaction.