but according to guardian, “Bigotry” is really just a name for any opinion with which you happen to disagree.

Wow you totally misrepresented that link.

1. The linked article isn’t even about the meaning of the word bigot, its a debate between two people about whether a politician should use the word bigot.

2. One of the debaters asserts that “Bigotry is really just a name for any opinion with which you happen to disagree.” which is his personal opinion, not a statement by The Guardian.

3. The assertion is never supported, contradicts the dictionary, and isn’t shared by the other debater in the article.