What I'm getting from her is really only "it's okay when you think that way, just don't be a dick about it", so basically be a decent human being. I mean, how many christians (or other religions) do we have who think that homosexuality is wrong in their eyes, but they can still accept it and be friends with people and not yell at everyone? As we all already know, the bad apples are the one that stick out the most.
Adding those silly emoticons at the end makes the post appear more friendly to me than if it was without one, otherwise it would more appear like an opinionated SJW. Not to mention that it adds comedic value, which makes it way easier to determine that some of her phrases are ment to be taken with a grain of salt.
When we look at this again

First two things are what I ment, "whatever you think dude, just don't be a jackass from it". 3 and 4 are the "take it with a grain of salt" things. If you look at it, when there's a homophobe not being aggressive about his views, lets say he's just telling someone "I don't like homosexuality" in a really calm manner, than it means don't be a dick yourself and go yelling at them. If you want to engage them in a discussion, sure, but also in a calm manner. Yelling and insulting and whatever isn't going to help either sides - especially when the homophobe is actually aggressive, which means he's not going to change his point of view anyways; in which case just tell them to please not attack people openly and be more calm or even "secretive" about it.
And the last thing - well it really only is more comedic than anything. You know how you spray cats with cold water when they are doing something they shouldn't do? That's exactly what she's refering here to. And the thing is, we humans are a lot less likely to do stuff when it has negative connotations, ESPECIALLY when it involves pain - basically the more unpleasant something is, the less likely we are to do something.
But again, only comedic value here. What I gather from it, "It's not really a use to argue with them because they don't change their point of view anyways, so just spray them with cold water to shut them up, eventually they'll learn the lesson to keep it to themselves"
Phew, okay, I had a couple of thoughts here too. Since we're on opinion base anyways, I have troubles seeing how people can be aggressive towards her/giving her shit, not being able to see it's part joke and part saying "don't be an asshole about your opinions".
And continuing on that, I'm not dead set here, if you can deliver me evidence of why she really IS bad, then go ahead. Otherwise I really only see something harmless here.