The Internet is both the best and the worst thing in the world, depending on how people use the power they have when they're sitting behind a screen.

But one TikTok prank is being absolutely slammed by disability activist Lizzie Velasquez - and it's not hard to see why.

At age 17, Lizzie Velásquez​ was on the receiving end of abuse when she stumbled upon a YouTube video created by online bullies that dubbed her as the "World's Ugliest Woman."

via: YouTube

A few years later, Velásquez did her first TED Talk challenging beauty conventions as we know them.

What could have destroyed her, made her.

Velasquez has dedicated the last decade of her life to spreading self-love and acceptance through her YouTube channel, and motivational speaking engagements and books.

Velasquez couldn't pull her teenage self from the comments section.

via: YouTube

In fact, she read every last one.

"I was so desperate to find one person that was standing up for me," she said. "And I never found it."

In that moment, she decided she wasn't going to let their negative comments be the definition of who she is.

Velásquez​ is diagnosed with Neonatal Progeroid Syndrome as well as Marfan syndrome.

via: YouTube

She is unable to gain or retain any weight and must eat every 20 minutes in order to survive.

At birth, Velasquez was just 2 pounds and 10 ounces.

Doctors even took a picture of her to show to her parents to prepare them, they have always loved Lizzie, just the way she is.

Velasquez has gone on to be a huge disability activist.

She's done it all - TED Talks, bestselling books, and social media fame.

Because Lizzie has embraced that she looks different.

And has encouraged others to do the same.

But it seems not everyone thinks the same way.

As a recent (and horrifying) TikTok trend has proven.

And now Lizzie has become aware of the trend, she's willing to do anything in her power to stop it.

She took to social media to ask for help from others, too.

The "ugly teacher trend" involves parents pretending to Facetime Velasquez to scare their children.

"This trend where you are pretending to FaceTime someone who is either disabled or is a baby or just some crazy mugshot and you're showing it to someone to get their reaction to saying, 'Oh hey, talk to this person' just to get a quick laugh, this is not funny. This is not a joke," Velasquez explained.

"He had a scared reaction on his face."

"If you are an adult who has a young human in your life, please do not teach them that being scared of someone who does not look like them is okay."

"Please, everything that these kids need to know about having empathy and being kind to one another starts at home."

"I couldn’t sleep. All that kept running through my mind was the innocent people used in these videos."

"Whether their photo is photoshopped to look exaggerated or whether they are babies who were born uniquely different, nobody has the right to use that in the form of humor."

"When things like this are brought to my attention my number one concern is how can I make this a teaching moment. How can I best use my platform for good."

So Lizzie took to Twitter to reach out.

She's hoping to get in touch with TikTok and get these awful videos taken down.

She's reported the videos but worries this won't do enough.

And she also wants to use this moment to spread awareness of people who look different.

And many have responded.

Offering their support to Lizzie and her message.

People are sending her tons of love.

And it's really not hard to see why.

It seems as though everyone is behind her.

And eagerly awaiting TikTok's response.

We hope Lizzie gets some success in her aims!

Want more TikTok controversy? Scroll on for a different "challenge" hitting headlines for all the wrong reasons...