Some managers and team leads are absolute bullies. They are inhuman and ruthless.
There's no need to use "some" in this context. All managers are bullies. We used to have good managers but they were driven out because they were not good fits for the toxic culture this company promotes. Those who replaced them are in 99 percent of cases incompetent sycophants who compensate for their lack of competence by attacking those below them who are getting the job done.