I was very very reserved about using the Ignore function for similar reasons. But after far too long I got fed-up with pouring through vast numbers of Twitter posts from unknown US consipiracy theorists who lost the concept of "fact" and "truth". I have better things to do with my time. Countering all this twaddle was never and discussion, it was just one people shouting without even having a point to make.
So I eventually (and far too late) used the "ignore" in a very limited way and I still see views I don't agree with, views that make me think and those posters do engage in discussion, etc.