My advice? Ignore most things other parents say. My youngest graduated from high school last year. A public school. A sane school - though you'd never know it when listening to the other parents. Parents are nuts and you should take everything they say with a huge grain of salt. (Except me of course!)
On the college front things are a little different. My oldest two went to private, liberal arts schools majoring in mathematics and science. The SJWs make life irritating and the administrations kowtow to them a bit excessively but they still ended up getting a good education. My youngest is going to a public university - even though the nonsense is present, the student body and the administration largely ignore it except where there's a legitimate case (I know that's subjective, but what "most people" would consider to be a legitimate case). Most of our "culture wars" are made up by Fox News and CNN to give their talking heads something to blather on about. Hell, if we're all in agreement on most things - which we largely are - then why would you watch them? Their whole business model is making mountains out of molehills.
The funny thing is China believes it. You may recall Japan thought we were in decline, too.
Honestly, at no point in my life have a seen the future of the United States as being brighter than I see it now. Do we have problems? Absolutely! But we're doing a much better job not sweeping those problems under the carpet than we did in the past and that's the key to our getting those problems solved.