That’s not workplace drama, you’ve described interacting with people. It’s difficult to say if it’s always been like this but social media hasn’t helped. People are now used to expressing their beliefs and opinions to everybody, no matter how polarizing or unpopular they might be. It’s not limited to the workplace.
For not caring about what people think, just remember that nobody’s opinion matters. Your favourite colour is yellow? Cool. You don’t like Taylor Swift? Great. You think all atheists should be killed? Neat. Opinions are like points on Whose Line Is It Anyway. They’re made up and they don’t matter.