Eh, no. The general taxpayer doesn't 'pay for' our children's CIs.
Sure, if you stretch, as you are doing, you can make an argument that my taxes 'pay for' pretty much anything -- the car you drive, the house you own, the food you eat. The statement from the commenter who said that taxpayers foot the bill for CIs is not accurate and not relevant. Why say it? Because you think you, as a taxpayer should have a say in the medical care my daughter gets because of some link to the retirement taxes we pay? No. Making this connection is like me saying that I should have a say over what kind of car you get, what kind of work you do, what medical care you get because I "pay for" your car, your salary, your healthcare, etc. in the same way that you "pay for" my employer-provided health insurance plan that really did pay for my daughter's CIs.
As I said, though, you don't pay her medical bills, but what your taxes DO pay for, if you are a MA taxpayer, is the ~$95K a year for my daughter's education at a school for the deaf vs. the estimated $16-20K you'd pay for her in the public school.