Rudeness here is in the eyes of those who call it that.
You even express your frustration directly in a sibling comment below.
Pretending your comment wasn’t rude, especially after elsewhere expressing your explicit frustration, is only half-true at best.
Have a nice day. :)
They are fearful that people with your stance will give companies a better argument for less remote-work. It's one thing when executives talk about it, because they're "not on the ground" and "just want control" or "don't understand individual contributors", but when peers like you support non-100% remote, it's a real worrisome prospect for them.
Edit: Recommending they find a coworking space they can bike to and work from could have been a nicer suggestion (assuming pandemic ever goes away)
Second: you are dismissing the fact that having an office to go to gave a lot of people a routine as well as forced social interaction. Now, it requires strict discipline to try and enforce it on yourself, whereas before it was a default.
I share this commenter’s experience. That you don’t is fantastic for you, but doesn’t make it any less legitimate.