Thank you for taking the time to find and post the links, but I think it's really clear that that poster is not engaging in good faith. I've unfortunately seen a lot of it online over the past few years and it's very recognisable.
It wasn't until I encountered it face to face in real life, though, that I truly realised how much they properly hate us, and how disingenuous any engagement is.
It was at the 'enough is enough' protest in 2018 ish, and a bunch of counter protestors, corbynites, surrounded me and my children as we left to go home, jeered, mocked and laughed at me as I tried to engage with them (in good faith, respectfully and politely). My kids were about 8 and 5 at the time.
It was truly horrendous and chilling, but it made me realise what we were facing - the depth of the hatred, the absolute not seeing us as real people they could listen and talk to, the complete lack of concern for the fact that they were deliberately upsetting very young children.
Later on during the 2019 election campaign, similar people turned up outside my kids' primary school and intimidated and abused parents and children (I actually got a written apology from the local Labour candidate for that - he is a reasonably ok guy).
I always remember those people and the look in their eyes when I get drawn into these discussions online. They really, really, really despise us.