Social media just makes things worse by giving these knuckle-head F***wits the power to be evil.
I think you (and others) are oversimplifying things. It’s easy to say it’s trolls on social media, but who are these “trolls”? It’s people commenting on things, probably pretty innocently in most cases.
Look on Twitter when The Chase is on. It trends every day, and it’s full of people commenting on the contestants, saying how silly they are for not knowing an answer etc. It’s probably without much malice, but shows are actively encouraging this (how many shows flash up a hashtag at particular moments?). Love Island is probably the biggest for tweet-along viewers.
I love lamp