That's just a lie...
The food is good, for "fast" food it's amazing. Like, I don't think there's another fastfood option that hasn't fully transition to the mcChicken method were the patty is reconstituted scraps.
Their politics with LGBTQ is (was?) absolute dog shit and more than enough reason to boycott them as an isolated issue...
But honestly looking at any other aspect of their company, and they're one of the most worker friendly options. Which again, is not a high bar to clear, especially in fast food.
So if anyone is boycotting Chick-fil-A, they have valid reasons. It's just damn near every other option is even worse, so if they have consistent logic their boycott list is every major corporation. Like, the owner has 10 billion dollars, no billionaire owned company is going to be ethical. If someone's only issue with Chick-fil-A is the anti-lgbt stuff, that doesn't mean they're a good person, it means they only care about the demographic they consider "us".
But again; saying they're food isn't good is just a flat out lie.