Math, Reading Scores Plunge To Record Lows https://www.huffpost.com/entry/test-scores-math-reading_n_6492ec93e4b0bd83fda59e2b?utm_source=dlvr.it&utm_medium=mastodon
The article says no such thing?
I also suspect you're confusing "home schooling" and "virtual schooling" as they are not the same thing, but it's really irrelevant to the point I believe you're trying to make. This is testing of public school kids(and some private, but if you actually read the data "private schools" as a category didn't encompass enough tests to be statistically relevant and reported). There's no "home school" component to these numbers at all.
I believe what you're trying to say that is that parents and virtual teaching somehow ruined learning for students, for years and it has nothing to do with the current, raging, pandemic. Am I correct?