I'd be beyond pissed off as well. My
dh is like that and that is one of our major major problems in our marriage. He doesnt help me or back me up and then he says that when he does get onto the kids i dont like the way he does it. Well d*** straight i dont when you get up off the couch finally after i have argued with my 3 yr old for an hour while 15month old is grabbing my clothes and im trying to cook dinner for everyone, and say Mother f***** go to your mother f'in room. I mean there is a right way to talk to children, am i right or am i just an idiot? If i were you i would attempt talking to him about it in a calm way that is not confrontational and see how that goes. If he doesnt understand or care (which kinda sounds to me like he doesnt now) then i wouldnt hesitate to start doing it on your own
IMO. But thats just me as im going through kinda the same thing and i know how you feel. I have been trying to work on my marriage for some time now and i dont know much about yours or how or what you guys are doing or plan to do. good luck though! i do know how frustrating it is i know that much.