I know that's not a good way to win arguments, but frankly if someone can look at the slate of truly abhorrent things the Tories have done in office over the last 10 years and still actively support them in 2020, I find it very difficult not to judge that as either a moral fault, a show of supreme ignorance or a combination of the two.
Call it closed-minded or whatever, but I have no interest in putting my time and effort into building friendships with people who, if they didn't know me personally, would happily let me starve/freeze if I was poor, or lock me up or send me back to a war-zone if I wasn't British.