Abuse is typically things like not paying their salary, withholding holiday contributions, breaking contractual scheduling obligations, threatening the staff with termination or reduced pay, and a host of other apparently normal behavior for certain kinds of employers.
“Unlawful termination” is only a thing when it is either in breach of contract, or discrimination. Typical contracts in Scandinavia mandate a 1 month notice in advance of termination. I don’t know why you would think that’s unreasonably long. (And yes, the social security net is the reason it can be so short.)