I'm not British, but from an ex-soviet-occupied country. You'd think my countrymen/women who know firsthand all there is to know about being under russia's boot, would vehemently oppose putin. And yet, we do have our own fifth column, regrettably.
I can't stand to listen to their nonsensical gibberish and blatant lies, but from what I've heard it usually goes something like this (all below is categorically NOT my own opinion, but theirs):
The West is woke, gay, perverted. They don't know what a woman/man is, men are pussies wearing skirts, women are jumped up harridan feminists, ugly, fat and unfeminine, who forgot their duties to their families and their husbands. Homosexuals reign supreme, converting 'our children' to their pedophilic perverted practises, children's services and schools are in cahoots with them, tearing apart decent families and giving the children to gays. Only russia is a beacon of traditional values in this pervy world, yadda yadda. You get the point.
Furthermore, blacks, muslims, any other non-white people are also a problem. They should fuck off where they came from (doesn't matter if they were born in say the UK). Only in putin's russia... You get the point.
Soviet union was a golden age. Everyone had jobs, everyone were given housing, everyone knew where they stood, life was good (that's partly true, but a VERY simplistic and one sided view at the things). There were no gays, no drugs, no pedophiles, women were women, men were men, kids obeyed their parents, etc. putin will bring all that golden age back.
And lots of other shit like that. I hope I don't need to say that all the above is total and complete bullshit, obviously. But there are quite significant number of (totally idiotic) people who genuinely believe that.
Maybe somewhat similar with Farage/Robinson supporters. Good ol Nige will come, wave his wand, get rid of all the blacks, browns and EEs stealing our jobs and corrupting our towns, and all will be as good as in the 90s (or whatever time period works for you), Union Jacks in the air, blue passports and traditional British values and way of life returned.