I used to think this, but I think they just dismiss the idea presented in the memes as wrong headed.
It's like when we see some woke leftists saying all persons who identify as women deserve respect and access to OBGYN care. It seems insane to us, but to them it touches on a truth that is far deeper than Conservative hatefacts.
Our stuff doesn't convince them or change their minds any more than their stuff does to us.
You'd be surprised what a good meme/comic can represent to someone on an issue they're invested in.
It is as you say above for most wokeites when they see 'memes that will make them cry' (speaking from experience). But hit the right area and doubt settles in.
Stonetoss did that for me.
Left leaning as I was, I was always anticommunist. Saw the one about 'I support the working class!' and just had to find it again one day.
Led me down a rabbit hole. At first I didn't mind the JQ-themed ones. I just skipped them, looking for more anti-commie ones. Then others appealed to me and now I get the JQ ones and even think they're a tad tame.
This took 2 or 3 years for me.
They work. Just not everything all the time.
It's less about relentless exposure and more about exacting precision.