I'll speak about Friend 1 first.

I'm going to play devil's advocate here, to give you a different perspective.

I think neither perspective, your friends or yours, could be considered the ultimately perfect perspective. I'm just throwing this out there, so you can consider this from another point of view.

Friend 1: His response was, "more parents need to admit having kids is a pain". That's fine, he's entitled to an opinion. I think my kids can be a pain sometimes too . But I love them dearly and I'm so blessed to have them in my life. I don't think, based on what you typed, he was saying people shouldn't have kids because it interferes with shopping - in fact, the Facebook post sounds like a satirical one, as opposed to being a serious one.

The other issue here is, you ousted him publicly in the post, and berated a friend of his, going so far as to call her selfish. It probably would have been better in that situation, over a beer, to have bought it up light heartedly if you were that concerned, rather than publicly. He private messaged you about the situation, indicating his mannerism is not one to publicise indifferences of opinion. You could have had an indifference, but without the insults and name calling. But again - I go back to my original point - I don't think it was a serious article and I think it's one that took the mickey out of having kids.

Friend 2: This is kind of a difficult one for me to respond to.

Maybe some guys think it's loyalty to friends first before choosing a date? And he was miffed because you continued to date her, despite him objecting. So it's not about whether or not he was initially wrong about his impressions with regards to who you were dating, but more about the fact that you didn't put him and his opinions first.

You're right, these friendships did end over things that adults can sort out.

It's a question of whether or not they want to sort it out.

And a lot comes down to what your relationships were like, prior to this massive blowout.

They've probably shown their true colours. And made it clear, you were a better friend to them when you didn't push back / object (very wrong, I know).

I don't see much point, based on what you've written, of rekindling this friendship.

If you must, invite them out for a drink (soda if you don't drink) and take it from there. If they decline, then you have your answer. No point in rekindling the friendship.