A great many American journalists care about facts and reality. That doesn’t mean that they’re oracles and know everything to tell you everything right away. They’re trying to figure things out as well.
In the present situation, it’s not 100% clear exactly how many different groups are showing up at the protests and which ones are setting things on fire etc. There is evidence of certain groups causing trouble while certain individuals talk about some made-up fantasy group they blame everything on with zero evidence. Many stations are also covering cases where police/national guard attack peaceful protesters unprovoked (or to make way for stupid photo ops). Or shoot at journalists intentionally. They’re also covering police/soldiers who are standing in solidarity with protesters. They’re covering as many sides of it as they can with what information they have.
Alternative facts are not facts.
Autocrats and wannabe autocrats want everyone to hate and distrust journalists that tell the truth about them.