As far as being there for your children, again, I don't see the connection with estate taxes, your children will definitely need you even if you can't pass down 5 million dollars worth of assets to them.
[0] https://www.nytimes.com/2019/09/05/learning/should-gifted-an...
As someone who went through gifted classes in public high schools, as they exist, I have no issues with them being removed. They have very, very serious issues with socioeconomic discrimination and discrimination against people with mental health issues, from first hand experience. So unless we can figure out better ways to select people for them, and so far it looks like we can, I agree that they do more harm than good compared to the alternatives.
Sincerely, a former gifted student that's also a first generation immigrant that didn't end up addicted to any drugs or getting beat up for the sole reason that I was able to hide my ADHD until I got into college. Three of my gifted friends, two of which got into gangs and one of which was struck to depression to the level of suicide attempts, weren't so lucky.
Either we find a way of selecting gifted students without rejecting the most vulnerable ones that need the most help, which apparently we can't right now, or we desegregate schools.
But either way, I credit the program I was in with saving my life essentially. Also, very few people were willing to put in the work needed for this program. My high school was significantly harder than my college, with the exception of a few classes.