I don’t believe in banning music. I also didn’t know that Tchaikovsky was an especially notable antisemite. Then again, he was an odd fellow and a homosexual who married a nymphomaniac.
Just because someone made comments here and there doesn’t make them notable in that sense for their time. Tchaikovsky’s mentors were the Rubinstein Brothers and he held their opinion in high regard. He was highly influenced and admiring of Mendelssohn.