Think everyone needs to calm down a bit.
Hope you are OK, Spongebob. Is this your first baby?
I think the MN reaction sometimes of just telling everyone to f off, might be quick and easy to type, but it isn't easy to live with.
Yes, the OP's DH didn't seem to be behaving well, but we don't know the whole story from a few lines of texts on a screen. The OP is adjusting to being a new mother, but he is adjusting to being a new father too. He might be naive enough to have learnt his ideas of fatherhood from films etc where, after the drama of the labour, and the elation of the birth, he might not realise that things don't go smoothly straight after.
So, he might think (ignorantly) that everything is fine, but the reality is very different.
So, all of this might have hit him out of the blue; he might have thought his DW was OK (maybe she hasn't communicated that she isn't), so all he might know is that his wife had a baby, his family are hear (he probably won't have picked up on the comments - ) and know she has told his family to fuck off.
OP - I don't blame you for being upset, I would be, but calm down try to think straight before you make ay hasty decisions.
And I'm saying this as someone who jumped in the car on Day 3 after having DC3, looking for a place to jump, not because Dh was inconsiderate, but because I was so hormonal and sleep deprived that I couldn't think straight.
Good luck with your beautiful baby. Life just gets better and better.