You have nothing to apologize for that I can discern.
And your question as to what degree one should care what an artist thinks is both relevant and significant.
To answer, I weight their views as I would anyone else - are they intelligent, well-informed, thoughtful? If so, I am interested in what they have to say. If they are self-obsessed dullards their pronouncements are of no value.
Then there is the separate question as to whether one should support an artist who holds what you feel to be offensive views or acts abhorrently. I find the question intriguing as it pits my enjoyment against my values - it is pretty easy to start rationalizing to allow the enjoyment side win.
The question gets harder when the artist is dead and his actions are long ago relegated to history.
(I had not herd of Sealioning as a term. Fun.)