It's hard to ignore that kind of abuse. I know I could not. I am sensitive and I also can't just "brush stuff off." This sounds scary and serious. You should not be threatened this way at work. Document everything including e-mails and texts and take your case to the person in charge or the HR department. No one should have to work day in and day out in that kind of environment. I don't understand why your other co-workers seem to be ignoring this.