The harshest, and most truthful, thing you can say about Jeremy Corbyn is that he unites his enemies and divides his friends. The right will vote Conservative to keep him out; the moderate left is repelled by his ambivalence about Brexit and his anachronistic socialist views. Labour will likely pay the price for it next month.
But Corbyn has one big card to play in the election. You could even call it a trump card, because it comes in the form of the American president. Trump is the living embodiment of every negative British caricature of an American; he’s loud, crass, overbearing, materialistic, and ignorant. The British–even the traditionalist right–naturally despise him. BoJo, on the other hand, is clearly identified with him, and the Tories look more like a Trumpist party every passing day.
If I’m Corbyn, I would hammer on this issue every day on the campaign trail. It might even get some people to forget about his innumerable issues as a potential PM.