You can say you're sorry, but once words are spoken they can never be taken back.
Words are powerful!
Everyone has an opinion.... and with today's age, full of social media everyone has something to say and a platform to say it on.
The problem is not voicing your opinion (unless it's done disrespectfully.) The problem I see is that many people these days do not take the time to be aware of who is around them and how their words can affect others.