Hi angiebails
just some thoughts
is it in any way possible to record your husband saying he is against their actions - sorry I appreciate you say that he has communication problems but you yourself seem to know what he is communicating - maybe have someone else around to witness that he is speaking freely of his own accord
do you have the energy to speak to a solicitor yourselves - if you believe your husband does have capacity he can alter the POA
on a practical financial note - are all bills paid by direct debit? - if not I'd get all of them paid that way so they are automatically and regularly paid and no-one need change that
have you any income or savings of your own? if so set up separate accounts in your name only
is it worth playing their game a little - I mean, put together a list/spreadsheet of every single regular payment that needs to be made a] to run the house b] to meet your husband's care needs c] to feed and clothe you both, and keep clean and healthy d] those other things that make life worth living eg running the car (!) .... and the same for as and when payments - figure in contingencies eg boiler breakdown, replacing overused washing machine and dryer ... (be creative but realistic - the worst can happen ...)
also list out all your 'duties' as carer - maybe go through a day and list all the tasks you undertake and then add the occasionals eg medical appointments, visits to chemist for meds,
point out the things you no longer do - no more luxury cruises! so that saves quite a bit
maybe find out how much a care home fees are in your area and pass on that information - adding that no LA will consider the house as part of funding while you are living in it, and you would be entitled to half of your husband's personal pension if he were LA funded - may make them realise what good value you are ??
you say you have good friends, maybe someone you trust could help you with this, as I know I'm suggesting a lot of work - I do think 'be prepared' is a good motto, though
I know all this is intrusive and you shouldn't be put in this position - may be time to fight fire with fire
ignore if of no help
I wish you both well