Earlier quoted context omitted.
Wanting a synchronous conversation is a pretty arrogant grab of someone else's time. This is also why phoning me is bad and please use texts like a civilised person.
That's pretty presumptive. There are any number of factors that might make a synchronous conversation desirable or even necessary. Merely seeking that out implies nothing about how someone values other people's time.
IMO it's more polite to use an async channel first to ask if the other party is available for a phone call, and if not, schedule a phone call for a specific time. Like, I'd love to talk with you about that problem this afternoon, but right now I'm too busy debugging another problem.