Emma, 44, told the pair that the “block button” had come in handy after she shared a picture of her son Ace, 8, in a pink top and with long blond hair.
The presenter admitted she had been overwhelmed by the response from fans over the snap, which garnered a huge reaction on social media.
She said: “I was really overwhelmed actually because it’s just my son in a pink top and for me that is normality.
“He loves colour, he’s always had long hair. He’s a very free and open-minded boy who doesn’t really, well, he’s like ‘why do I have to dress in green, blue or grey if I like pink, red, purple?’
“I’ve tried to raise him as a very open-minded young boy.”
Emma added: “There were a couple of negative bits, but the block button is a great thing.”
The mum-of-three had shared the picture on Instagram last weekend, hiding her son’s face from the picture as fans praised him for “breaking gender stereotypes”.
Lace as seen wearing a pink crop top, ripped jeans and pink Nike trainers, with his face hidden by shoulder-length blonde hair,
Emma’s husband Matt could be seen in the background looking at his phone as she captioned the snap: “My little style icon. (Ace, not Matt ).”
The TV presenter was soon inundated with praise from her followers, as one said: “So what if this boy has beautiful long blonde hair and wears a pink T-shirt! Jesus! I bet he smiles a million more times a day than you miserable judgey ADULTS commenting on this child! #getalife.”
Another added: “Your son is an inspiration. Coming from a mummy of a son who loves pink, rainbows and his Elsa dress. He is following his own story and not bound by stupid society stereotypes.”
A third chipped in: “Just shows how far we have to go in breaking down gender stereotypes. Pink is simply a colour. Hair grows. Let kids (or adults) wear whatever they want!”
Emma’s friend Fearne Cotton also got in on the action as she added: “I miss Ace! When is he making me that dress?”
GMB continues on Monday at 6am on ITV.