No. Offense can surely be given. But trying to magically legislate it away is a horrific, cowardly, hubris-ridden mistake. Offense arises because of difference in opinion and grasp of fact, intentional or not.
Because of this, it can and will always arise, no matter how narrow you choke down the channel of discourse, unless or until all have the same opinions and grasp of facts, which, one hopes, will never, ever come about.
The most productive course is to try not to give offense, and if received, to assess it and take value (warning, insight, stance, new information) from it if possible — otherwise, let it go.
Restricting opinion by legal means is one of the worst ideas ever. Offense is not a legitimate mitigating factor for censorship and repression. When enacted into law as justification for anything, what it tells us is that we need new legislators, because the ones we have demonstrated fundamental incompetence.