Not sure what you mean. Chik-Fil-A may not have exactly been Jack Chick about the matter, but the owner said as late as last year that homo marriage was wrong.
But he never said he didn’t welcome homos to eat at his restaurants.
And the gospel doesn’t order any such thing, any more than that he shouldn’t welcome any other kind of sinner to eat at his restaurants.
I think we confuse gospel with “nice Christianized society.” They are completely different entities. Gospel is a hook with which to catch sinners for Christ. Keep that in mind, and you get quite a different view than keeping a society nice and Christianized. You might have to embrace some very ugly situations, not endorse but still embrace, for the sake of actual gospel.
He was spouting off after the company already changed their charities to gay-approved mode.