These teachers are never going to win. Not in Florida. Not in any red state. Ever.
Laws may change (though they won't) but those administering them won't. At least not for much more than a 4-year term as governor. The homophobes and racists and misogynists are not going away, and they are not slithering back under their rocks.
So back to easier said than done. Move. Find jobs in school districts and schools where you are wanted and needed. Where you can do some good for yourself and your students without fighting these exhausting fucking battles every single day.
So what if the schools can't find replacements? Not your problem. But LGBTQ kids need advocates. Of course they do, and it may be a battle worth fighting. But at what cost to you? I'm not fighting these battles (except at the ballot box), and I'm exhausted reading about it.
Same issues will apply when Roe is overturned. Whoever can move should move. If there's enough population shifting, that may have long-term political consequences. If so, great. If not, at least you'll find peace and happiness elsewhere.
I know this is a cop-out. But the price paid is high when every day is a battle, and all you want is to do your job, live your life.