Let's see, you want me to choose one extreme or the other....hmmm...tough one.
How about neither?
I see no reason for schools to teach about this at a young age AND I see no reason to make a law to ban it.
I am certain that some kids deal with gender confusion at ages that young, but I don't think an academic lesson about it will help much. If a kid "feels different," then they'll spend the next few years learning about themselves and the society around them, putting together pieces like a puzzle until they "discover" how they are or who they are and how that fits in with those around them.
The furthest I'd go with younger elementary if this topic came up would be to suggest it's okay with any kid to play with any toy. Younger elementary students already have strong gender roles taught to them - so much so that if a male teacher wore something pink, they say, "but you're not a girl!" I don't think that's good or bad, but it's inaccurate - females wear pink much more often than males do, but it says nothing about a male for him to wear pink. Same with other gender-influenced things like a woman engineer or a guy teaching kindergarten. If a boy shares he plays with a Barbie, great, have fun with your doll and let's move on. If a girl has 20 Hot Wheels cars at home, thanks, great share, let's move on.
It's useful that young children recognize the trends - it helps them navigate the world. But they're not developmentally ready for all the exceptions or specifics, nor do they need to be, yet.
Florida is trying to pick one specific poor choice and making a law against it. It's like making a law against getting engaged to an emotionally-abusive person or making a law against going to McDonalds twice in one day. That's not a wise way to legislate. Honestly, independent of any of the ethics of the bill, it's simply a poor way to govern.
If you don't want teachers talking about this stuff, then parents need to. If you don't want teachers talking about this stuff, tell them not to. Tell them to send individual students who bring it up to the school counselor, who is trained. This topic is so overblown because YES, the far-left is shoving it in everyone's eye AND the far-right is deathly afraid of all their kids "turning" gay. It's absurd on both ends.
The far-left people are trying to legislate inclusion for every child out of a million so that none of them ever feels a moment of badness and the far-right is tryin to legislate away other adults doing their jobs for them when it comes to parenting. Both can make sense in a vacuum, but the last time I checked, none of us lives in a vacuum.
All that being said, independent of party affiliation, the topic as a whole is not the most important thing. If a kid has 2 dads and another kid doesn't get it, fine. Uncertainty is not a problem when you're 7 years old. It's called being 7 years old. If a teacher is (in your eyes, for whatever reason) intricately describing genitals and whatever the hell your mind creepily invents, that teacher should be penalized or let go.
Neither radical side is right.....neither radical side is ever right.
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But please, PLEASE go on about how I'm one of the bad ones. Ass hat.