What this country really needs to do right now is make sure that children are as vulnerable to sexual abuse as they can possibly be. Without some level of sex education to teach them what is absolutely not okay for an adult to force them to do they won't know that they should seek help and won't know how to describe what's happening if they do. Ideal for the paedophiles in power and their friends.
I think you can still teach children what is not okay without going fully into sexual education. Rules like don't let a stranger touch you, my private square and ensuring children can reach out to an adult for any reason at any time.
This doesn't need to fully cover the concepts of sexual intercourse or even the differences in sex/gender. Lessons like no one is allowed to touch chests or groins on anyone and no one is allowed to touch you anywhere without permission, can help set boundries without covering more sexually mature topics.
This is all sex education though. Nobody is saying you should be showing porn to toddlers, but age appropriate sex education comes from when they can speak. Names for body parts, the underwear rule, how a baby is born, this is all normal stuff you can teach pre-schoolers.