Jones' views are held sincerely, and he's a published author of several "serious", properly researched books, even if he has an annoying manner. I think it's partly because he looks about 12.
Hopkins just tries to say the most stupid and offensive things she can get away with for coin. She's a professional troll. She was finally booted from Twitter and dropped by the Daily Mail for calling for a "final solution" (her words) for Muslims living in the UK, and has been investigated for hate crimes. She doesn't even believe half the gross nonsense she comes out with.
They are not two sides of the same coin. That's a really bad, and unfair comparison.