I generally agree with Another, and it's interesting to hear her perspective as a racial and sexual minority, and as a vegan -- that's a good point about animal rights, something many people here seem to ignore while continuing to support the meat industry.
At the same time, I think it's fine for people to individually cancel Wise -- as long as they don't vilify others who continue to enjoy his works.
It all comes down to one's personal comfort level, which in turn all comes down to how one compartmentalizes things in their mind.
When I think of content creators I have canceled, there are two individuals that come to mind: JonTron, and another guy I won't even dignify with a name, but he was a particularly vile piece of shit who used to appear as a guest on GameXplain years ago until they severed ties with him.
I think for me, I stopped consuming the works of those creators because their personalities were inseparable from their creative work.
While their content didn't espouse hateful views, I could no long watch a Jontron video because the man himself is front and center, looking at the viewer, and it's hard for me to look him in the eye without thinking "This man sees entire groups of people as subhuman."
It hurt to cancel Jontron, since I considered him one of the funniest people on earth. Until his horrifying comments, he also seemed like one of the kindest people. But I could no longer comfortably enjoy his new work even if I tried.
But something like David Wise, who makes instrumental music without lyrics, I am still able to comfortably enjoy that work and support that work. For me, there's enough separation to insulate society against any influence he may wield, particularly as he hasn't commented explicitly on any issues -- this isn't like Sugiyama ranting in denial of Japan's war crimes on the radio. (I really like the orchestral DQXI soundtrack, btw -- I just try to forget who composed it.)
Still, if someone wants to cancel Wise and his music, that's fine. I just hope they don't hold everyone else to do the same. Like Another said, enjoying Michael Jackson's "Thriller" doesn't make you a pedophile, and not all meat eaters are OK with animal abuse (even if supporting the meat industry allows animals to be abused). How we consume entertainment, and compartmentalize it in our minds, is a deeply personal thing.