More accurately: your government takes your money and then, maybe, gives it back to you in the form of unemployment benefits and the like, minus significant processing fees.
The alternative is to use the money the government doesn't take and save it for your future "unemployment benefit".
The government would give me more than I would be able to save myself in a year. Over multiple years, I would be able to save more efficiently than the government, true. That's assuming everything goes perfectly however, so I view it as a form of insurance: I make less in order to have less anxiety that I will not be able to provide for myself and my dependents if the overlords decide I am no longer worthy of my job. It's a tradeoff, but one that I will gladly make. As a social good, that money also goes into helping those that were not as lucky as me to be able to make good easy money. And perhaps one day I might be like them too, who knows?
The alternative is to use the money the government doesn't take and save it for your future "unemployment benefit".