I have to say they is a common theme of 'i don't know why I don't like him/her' 'I just can't warm to him/her' ... and it's ethnicity of the celeb. I don't think it's on purpose racism, but an unconscious bias. I've probably opened a can of worms here, but that what I've observed
Sorry but not for me. I'm white and dislike Tom. Off top of my head have also disliked both Kenny and Gabby Logan, Matt someone (rugby player, Mark R's year I think), Matt DiAngelo, Alexandra Burke, Austin thingy, Jessie Wallace, Craig Kelly, Laila Rouass, Victoria Pendleton…
Quite a rainbow of people who've got on my tits 
BUT I don't disagree in the sense that people of colour often seem to get voted out before their time (I never vote).