Sadly it's part of the job. Comments can be moderated and removed. Most platforms have systems to report genuine hate speech and harassment. These do need to be tightened though as they are often inconsistent.
It sucks but it's always been that way for anyone in the public eye. These kind of comments have been aimed at entertainment industry veterans for years. It's not just influencers. Actors, musicians, writers, presenters, journalists etc all get them. It's just that social platforms give people an easier way to do it so it's more common. Other people in the public eye are also affected eg politicians, royals.
Sadly we can't stop people being dicks. I work in the media and both me and everyone I work with has had the same issues she has to variable extents. Generally the more widely you are known the worse it is and the more personal info you give out the more it hurts. If you put your home, family and life online that's some very personal info people are picking apart. My job doesn't involve that but I've still had comments that make personal
assumptions about me based on my work.
I have my personal information and accounts locked down strongly and maintain an open easily discoverable public account I temporarily mute or ignore if I get a particularly nasty shitstorm.
What needs sorting out are the laws for when this behaviour moves beyond words on a keyboard in a comment section or on a
Forum so basically stalking, swatting, releasing personal information etc. Things that actually compromise safety.
The rest you just need to ignore as there's no way to police it and too many other things that are far more vital than someone calling you fat, saying you are talentless etc.
Having a thick skin is absolutely essential if you are putting your life up for public scrutiny. Breaks are essential and if you have fragile mental health then you get someone you trust to do your moderation and only check what's essential.
My work is frequently pulled apart on social media. I never read the comments. Someone else moderates them, removes genuine hate, replies where needed and passes on anything I need to know eg constructive comments to me/asks me for a reply if required. This is absolutely the best way to protect your sanity.