No. Free speech should be about opinions from the won person, not on what other people should or shouldn't do.

For example:

• "I think vegans are idiots" => Free speech. It is my opinion. Noone else must try to change it by force. It could only be changed by facts but not by advices.
• "Vegans should try meat at least once in their life" => Not Free Speech. Vegans must do whatever they want to do. It is ok for the food industry to provide products specially catered for them. Of course they must also no try to convince non-vegans to become on of theirs.

Veganism is not the same as being on diet, yes, I know.