Never in the history of me sending thumb responses in work chats has it ever meant “whatever you say you fucking dumbass.”
It’s primarily used to show acknowledgement. It’s the office worker equivalent of “10-4.”
Seems like you have some pretty serious projection issues to work out OP lol
With jobs, it’s just the job market right now. Companies aren’t interested in keeping good relations with applicants. Expect to just never hear back on a significant number of your applications.