If healthcare is regulated by the govt. Then there will have to be some sort of blanket code established that lays out the req. for what each citizen must receive. If this is true then it becomes harmful for companies to innovate or offer new techniques, procedures, or services. Companies will only offer what is required. There is no incentive to innovate.
Under the current system Government and the Private Sector fund research through universities which helps drive innovation. For Profit companies also fund R&D and develop medical equipment, drugs, procedures, ect.
If you subsidize health care then you will take away a large chunk of the money being used for development. Because as stated before providers will only provide what they are required to.
Also taking money in the form of taxes and using it for things that do not directly affect you ie defense, infastructure ect. IS FUCKING RIDICULOUS. Why should the money i earn be forcibly taken from me and given to others.