I would reckon the average Briton is also biased against Trump. The average punter I don't know, can't say. I mean who are these fucking people and why would anyone listen to them?
Of course, most people who bet on politics are indeed biased. But the odds reflect the average.

But, we've also explained to you how there's no evidence for systematic cheating. That's not bias, it's a fact. But you ignore that because hurr durr the betting odds.
I didn't ignore it. If you scroll up, you'll see I replied to boost and accepted his comments. I simply pointed out that people are still betting on Trump, with reasonably short odds, so there are people who disagree.

So what do you think is influencing them in this instance?
No idea. idk about "inside knowledge". I'd be more inclined to say they are influenced by their source of media, while you're influenced by yours. People believe what they want to believe, and you guys are no different. I've told you I have no horse in this race. I want the legitimate winner to win, whoever that might be. I'd say that's likely Biden, but I don't know that.