He answered your question directly and then you change the goalposts. Clearly you hold the opinion that gyms should remain closed, and that's fine, but why even ask the question?
This is the part I'm confused about. If gyms were open, people who's lives were at risk still wouldn't go to the gym. Only people who didn't care would go. They are consenting to the risk that would inherently come with it. It isn't the type of place that at risk people HAVE to go, so why shouldn't we open it for people that are fine with the consequences? Also, restaurants are all completely open for dine-in in many of the places that gyms have yet to open. How does that make any sense? No one magically stops breathing for the hour+ they're in the restaurant.
I think quarantine should be down to the individual and the rules they'd like to implement on their private property (including their business), but you've probably already gotten that by now.
Too bad most people leave their private property and interact with people in public spaces where their personal rules are moot.
More arrogant than putting other lives at risk because you can't put your routine on hold, or alter it for a bit? No. It isn't.
"Lift a heavy stone"? That's a joke, right?
No, and it's part of strongman competitions. It's not dangerous if you have the right form and don't overdo it. Same as dumbbells & barbells.