Union Dues

I work for a company that employs a rather large labor union to handle the maintenance and installation of our various products.   (Note that I cannot be more specific due to privacy issues)   It is the time once again that the labor contract has expired and is up for negotiation which is the case every few years.   I am not against labor unions and the right to organize in this country, but I am against these same unions asking for benefits and considerations that the regular non-union members don't receive.    For example my pension was eliminated recently and I have to contribute to healthcare via my salary, but the union members still have a full pension and healthcare upon retirement.  I think GM recently came up with a good model to handle retirement and healthcare costs, which was to make the unions themselves responsible for them.  To hand over the funds that are maintained by the corporate entity and let the union management bear the costs of maintaining these benefits for their members.