There's also many of the minor characters in Mr Standfast, including Lancelot the pacifist with the elastic principles (minesweeping I can quite see as entirely compatible with pacifism, but carrying messages asking for reinforcements seems over the line, personally) who are highly sympathetic and definitely towards the communist end of the Left.

It's a bit double edged, talking about which politician you'd rather have with you in a tiger shoot. I mean, I wouldn't go tiger shooting in the first place, but if the point is "which politician would you rather have as a human shield between you and an enraged big cat?" it's Boris Johnson all the way.