In this current financial climate, NEVER uproot yourself and your family for a job at a company which has already demonstrated that they have no respect for you, either as a worker or as an individual human being.
There is no guarantee that they won't pull the rug out from under you, after you've chosen to go to all of the expense, hassle, inconvenience, uncertainty, and stress of moving to suit THEM. The only time you should move is when you're doing so to suit YOURSELF!
Take the money.
Take it, and be grateful you're also getting 6 months of pay to get your ducks in a row to line up new streams (yes, that's plural) of "side" income, so even if at the end of that 6 months, you still haven't landed a full time job, you at least will be on solid footing to provide your basic expenses for your household, via your "side streams" of income. Those can be anything from contract work, to temp. assignments, to freelancing, to gig work...or a combination of all.
Be smart.
When an a--hole who is mistreating you is also offering you money to get out of their midst, take it as a blessing that not only are you being given the opportunity to not only be delivered from (evil) having to deal with them anymore, but that they're paying you a nice sume of EXTRA, FREE $$$ ON TOP of your usual salary too!
You might not ever get such a sweet windfall/opportunity for positive change ever again in your life.
Take it, and be wise with how you use it...turn it into being the foundation/jump-off point/catalyst for initiating a new way of living, which is BETTTER for yourself and your future.