That doesn't have anything to do with whether advertisers are willing to be associated with her or her content, though. Are you proposing that YouTube start hiring video creators full time?
No, that's what you were proposing indirectly by bringing up Laura Ingraham as an example. She's a salaried employee – as long as Fox News doesn't fire her over this, she sees none of the downside of pissing advertisers off, so there's nothing particularly "risky" about it. The same logic doesn't apply to 99.99% of YouTube creators, who are paid directly by their advertisers.