Whether it’s a surprise or not, users don’t have a choice of what platform is most popular or effective at getting work. Many applications for gigs ask for links to your social media, it’s the default portfolio that many clients look for.
All that artists can do is diversify to other platforms which have the same issues, and make a personal website which will probably get almost no traffic.
I think they were saying the opposite. The gun obsessed military types you see in public may be bigots. SG characters may look similar bat are various races and not bigots.