It exists among a small number of 'fans' who want the world to think like they do and try to convince everyone that everyone thinks like they do because they hated, hated, hated TLJ (for a number of reasons, some valid, some bat fertilizer crazy).
So, they latch onto any data point to prove that they're right in their criticism and that everyone agrees with them. Except they only latch onto a few data points and ignore the preponderance of evidence that the majority of fans do not think like they do. A few data points, very carefully cherry picked, is not the same as all the data points.
And so, the poor showing of Solo -- poor that is, for a SW movie -- is their new data point to show they're right and everyone agrees with them. But there's a problem with that data point:
1. If Box Office is your proof, then you need to take into account the Box Office of Episodes 7 and 8 and Rogue One. They all passed the billion mark. So, by Box Office numbers, Kennedy is doing absolutely freakin' fantastic!!
2. The Box Office isn't done. Both TLJ and Spider-Man Homecoming had disappointing initial weeks. But after two months, they more than made up for it. So, don't count your Box Office until it's closed. You got the whole summer ahead of you. And the polls show fans really liked Solo (more than the critics did). The infamous Rotten Tomatoes users' score went *up* seven points over the weekend. The movie got a good "recommend" score. There's a lot right now pointing to TFA having 'legs' and word of mouth being "I liked it, go ahead and see it."
3. Solo is getting good audience scores... not the greatest, but good. So, even if the Box Office is disappointing, Disney/Lucasfilm has that data in their hands. They know the movie wasn't hated. They know it was liked. And so, they're not going to can Kennedy over a movie the fans (the actual majority of fans) liked.
4. China hated it!! They also hate the original trilogy and the sequel trilogy. Besides, you can't point to just one country's dislike of a franchise. The first three revived movies all got past the billion mark without China's help. China's disdain is a given for the franchise, not for the individual movies.