Because the left hates Musk. He was their Space Jesus until
He opposed COVID restrictions
Moved Telsa out of California to Texas
Moved his own personal residence from California to Texas
Started appearing on the Chud Rogan podcast
Joined President Trump's industry advisory board
And his biggest crime of all: he purchased Twitter, the most effective propaganda arm of the globalists, and allowed it to be used against the left (and the right but they don't care about that part)
All of this is why he's seen as the enemy of the left. No Democrat wants to upset their base by being associated with a traitor against the one true ideology.
Beyond that leftist stuff, there's also many in industry that are mad at him for creating a competitor in space flight and automobiles. He's upset the gravy trains they had going on. Many wealthy people have lost huge amounts of money shorting Tesla, which ended up going up in value, causing them to lose covering those shorts. But they keep trying to get their money back by doubling down on more shorts and getting fucked each time. They need the Musk empire to fail so they can undo their mistakes going up against him