"Subscribe to PewDiePie" has been adopted by white supremacists. Part of it is due to the 'fight' to get to 100m between PewDiePie (the 'white') and T-Series (the 'browns'). Part of it is also because PewDiePie has or has been accused of retweeting, posting, promoting, etc views, channels, and memes that are racist, anti-Semitic, misogynistic, etc.
And the person who killed five police officers and injured 11 more people in Dallas was a fan of BLM. And John Hinckley Jr. thought he would impress Jodie Foster.
The views of madmen don't reflect on the celebrities or groups they're fans of.
White supremacists don't typically claim to drive particular roads before going on a shooting spree that kills 50 people. They also don't advocate their ISP when doing ransomware. Pewdiepie has said some controversial statements, that whether intentional or not has attracted a fan base of white supremacists. Nothing he has said has been as controversial or impactful as it would be if a head of state said something similar, however for better or worse he has inspired them whether he wanted to or not.
Was it really, or is it like the "White Power" symbol (ok sign), which was a joke by /pol/ until the mainstream media believed it after which it was picked up by actual racists?
It was an effective proof of how ridiculous the media is. They were desperately looking for anything they could use against Trump, so they swallowed the laughable "OK sign = white power" story as quickly as they swallowed Smollett's story.
Proving that the corporate media is mostly propaganda may not suit your political preferences, but comparing it to "goat-kissing" ranks fairly highly on the nonsense meter - and these days, that's really saying something.