Social conservatives are absolutely entitled to free speech--only most of them, like O'Reilly, Limbaugh, and Palin, charge a fortune for it. What social conservatives don't have, though, is respect. Most reasonable people regard such mutterings about having "concerns about homosexual behavior" as ample evidence of ignorance, prejudice, and a desire to impose their own moral code on other people. And, of course, if you are an employer accused of denying legally-mandated equal rights to homosexual applicants or employees, comments about your "concerns" may well be presented as evidence that you have unlawfully discriminated against homosexuals in your hiring or employment practices that a jury will have to consider.
But, mostly, you see, it's just that social conservatives are and always have been on the wrong side of history You would have loved the 1950's, but time has passed social conservatives by, and as time goes on, as the demographics of the country change, as people get used to accepting homosexuals in their communities and seeing that their presence doesn't destroy anyone else's marriage and that their children haven't been molested, you'll see social conservatives being more and more ostracized. You must remember that at one time George Wallace, a sterling social conservative, expressed views that were embraced by a goodly number of Americans. Today, a half-century later, those openly denigrating black people because they are, you know, black, are virtually universally condemned, just as anti-homosexuals will be very soon, if not already.
On the other hand, look on the bright side--I hear social conservatives are doing a helluva job battling that vicious War Against Christmas.
So the government isn't going to jail social conservatives for being idiotically wrong on abortion, contraception, long hair, hip-hop music, evolution, prayer in schools, the gold standard, or intolerance of government deficit spending to recover from a demand shock at the lower bound. You needn't worry about being fined or thrown in jail. You just might want to buy a good pair of ear plugs because there is nothing in the Constitution, the Bill of Rights, or the Mayflower Compact that is going to save anyone from the criticism of his fellow citizens.