Is there a word or phrase for someone who tries to avoid hearing bad news?

Such as hearing about people's personal life problems or watching the news due to all the sad stories in it. Emphasis on the word avoid rather than just be "upset by".

I prefer not to talk politics or share my problems with people who are ____ because most people are empaths who end up feeling sad if they hear any topic of conversation they deem to be negative or unfortunate. It ruins their day, they become sadenned and they say it burdens them.

The words snowflake, empath of sensitive is not suitable.

The word ostrich is often used; in your case, it would be plural.

[from the belief that the ostrich when pursued hides its head in the sand and believes itself to be unseen] : one who attempts to avoid danger or difficulty by refusing to face it