"in addition to futa and suta you can also deduct the medicare tax withheld and the medicare tax withheld on the schedule C right?"

Nope. None of that.

You need to understand "payroll math."

Gross wages and employer share of taxes = the business' costs.

Withholdings are not the Business' cost. They are part of Banking. The deductions from staff are forwarded to the various agencies, and were already part of Gross, but this is the part the employees did not get to Take Home.

If you don't understand this, it is time to work under another person as a mentor.