I hate bullies. I have a special level of hatred for those that abuse those in pain
Houdini that is all too obvious from your response & smacks far more of baggage from your own personal experience, than a level headed sensible response to the OPs post - I'm sorry its sounds as if you've been through the mill, but you can't go through life thinking everyone is tarred with the same brush & forcing advice on people based on your own life experiences - thats not in the OPs best interest, any more than staying with a bully - in fact TBH, I'm sure without meaning to IMHO it smacks of bullying others into seeing your POV :(
The OPs DH may well be a bully, but from what is written he may also be a genuinely good man, struggling under the weight of being out of work in difficult economic times, feeling angry with himself for what he sees as himself being lazy & transferring that anger onto his wife - on top of that he has a sick wife, with an illness that only us sufferers can truly understand as it waxes & wanes so much & he is angry at seeing her in so much pain & watching her work & study & feels guilty as hell that he isn't pulling his weight & saving her at least part of her torment - & men being men, if they can't "fix" it get very uptight - very possibly lots of things at play to make his actions NOT excusable, but understandable -
not saying that makes it right - it most certainly doesn't, but surely if the latter applies he deserves more than being treat less than a dog - booted out because he let his anger get the better of him & lashed out 
as I said only the OP KNOWS how he really is & IF he is genuinely a bully, then I do agree with you that she's be better off without him, but IMHO your OTT response & insistence that we all agree with YOUR take on it, says far more about you than the OPs DH - I've even found myself wondering if we are reading the same posts
- yes he's acted like a complete Dick & was bang out of order & needs kicking into touch - but that doesn't mean he IS one & isn't necessarily grounds for ending an otherwise good marriage.
What he can do for the best is to get a job, teacoupons, a good enough one so there is money to PAY a proper person to help where you need it. He can do this, whether or not he shares the same house as you actually
I DO agree with that though, it doesn't sound like he's coping well with the loss of identity due to being out of work, causing more resentment aimed at the OP as his new job will be to be her carer - financially understandable if no works available & IF you can get DLA - not easy for FM & even harder for an FM carer:( & also having my own DH home on holiday this last week I know how just having him around has knocked me right off kilter with my own routine of pacing etc & it is affecting my own health & TBH as a result has made me really ratty with him as I'm in more pain & thets in itself has caused a few arguement's here -
its a vicious cycle & where as I don't in any way condone the OPS DHs behaviour - it IS bang out of order, there is just as much the possibility that he is a good man, who made a mistake in difficult circumstances as there is him being an abusive bully - & only the OP knows the truth of that