Which is not the same thing as your statement that the courts force alimony payers to work.
Alimony is typically awarded to help with a transition period and most recipients end up having to support themselves, anyway. There is plenty of incentive for the recipient to get and keep a job. My ex is receiving enough alimony to support herself without any problem - yet she still went out and got a good job. It amounts to significant incremental income for her, so there's plenty of incentive for her to work.