There are many days when I feel like this, and pretty muct every day for as long as I can remember, I've spent some time thinking about where I should go(outside the US) if fascism wins outright here.
You called him a troll. By that definition, he likes your attention. The choices are feed the troll and live with, maybe learn to enjoy the resulting walls of text, or Block them.
Sorry to remind you, there is no in-between. Even if he had some sort of aneurism/epiphany and suddenly wanted to break character to do things more to your liking, he would do so under a new username, or be laughed back into the role everyone has come to expect. Been There Done That.
Virtual Classrooms were the first thing we tried and realized it wasn't for us. We dropped it within a few weeks. I can't imagine spending any significant amount of time stuck with such a finicky and un-reliable medium.
"Look at it wrong and it breaks" is very apt in that situation; All the while they are "taking attendance", and none of the lessons were available for later viewing. Our kids learned more from going through stacks of worksheets* with our help, reading, and just spending time with us as we went about whatever errands.
*worksheets were over 95% of the Virtual Classroom work anyways. The rest was art and poorly thought-out "expiriments", with the occassional form-letter/one-paragraph-a-week "essay". Not even book reports or recommended reading!
Why do you think "many" come to you with all of these skills? Home-schooling is more common than ever. Most homeschoolers we met were also restricted to older or no tech... Even no tech seems to be better than consumption focused devices.
That's how we handled it when we home-schooled the older three for a while. They ultimately asked to go back to regular school, but they had stayed ahead of their peers.
Congrats on making me want to pull my youngest from public school for a year or so, so I can teach her typing, scripting, the command line, etc ... (also, phonics) ... Blows my mind that TYPING as a late-elementary-school glass is basically gone in our school district, nor is it a class that's even available in middle or high-school.
I'm in this comment, and I don't like it. I still fix "computers" for a living, but when I get home, most days, the last tech I want to interact with is anything more complex than my phone.
It does seem like some out-of-left-field weaksauce to me, but the absurdity is part of the populist newspeak playbook that has been disturbingly successful over the last decade or so.
Stop giving them excuses.