If your attitude is purely one of "don't use any of my money to do this", well, a government-run compensation system would be tax-funded and would use... some of your money. In fact, it would probably just be implemented similarly to employer payroll taxes, so it would mean you'd get to pay into it even if you somehow manage never to have an employee who has a child. Then you could complain about paying into a system that's not paying back out to you!

Or you could just learn to deal with the price of living in a civilized society, and accept that while this may be one specific benefit you'll never take advantage of, there are plenty of benefits you do get to take advantage of, that perhaps others don't, and that they pay into them regardless.

(and that's without considering that hiring and onboarding replacement employees is expensive, too, if your policy is to fire/not hire people who choose to have children, so please be sure to consider that as one of your costs)