So, what companies are they invested in that make birth control products? The company does not want to pay for employees' BC, but have no problem with the employee paying for their own. What's the problem?
And, no, the gay marriage "thing" is a direct attack on Christians and others that oppose same-sex "marriages". I guarantee, that the first church to refuse to perform a same-sex ritual (I refuse to call that a "marriage") will come under fire from every direction for not doing what they are "supposed to" under the law. Like the bakery that would not bake a cake for a gay couple and ended up having to pay $135K in fines (now, is THAT right??? Hell. no, it's called extortion!), the churches will be belittled and pressured the same way. It's happening, all you have to do is pay attention.
There are bakeries that are happy to make a cake for a gay ritual. There are churches that are happy to "marry" gays. Use them, by all means. Do NOT force businesses or churches to sanction these, just to prove a ridiculous point.