I have no problem if your religious conscience tells you not to use birth control. I do have a problem when 1. you want to make your beliefs on contraception law (not very likely) and 2. (More likely) I and millions of other tax payers have to pick up the tab for your brood.
The "brood" you refer to is likely the welfare brood, which has nothing to do with the issues being discussed in these threads among Christians.
In fact, its insulting to even suggest that Christians are having children, only to have the government support them. That's ridiculous. That kind of stuff is going on among welfare queens, not the Christians engaging in these debates.