For me, two points:
(dating myself here) Minimum wage used to be $5.75 when I was in high school. I worked my ass off for an entire summer. I fuckin hated it, but we all gotta hustle. Around my last shift, I came out to the parking lot, and someone had done my car dirty with a hit'n'run. No note, no CCTV, nothing. The damage was in the neighborhood of $2k, which is exactly everything I had saved up that summer.
I worked my ass off 300 hours to break even. It might as well just have been some community service work release program. Fuck capitalism.
The other is when I was older, post-grad. I had a shitty job where I had to pony up for own health insurance plan with high deductibles. I started having random tingling in my joints, so I did the responsible thing and had it checked out. I got sent to several specialists who ran a battery of tests. I'm already in the hole, $3k out of pocket, and all I got was, "We're not sure what's wrong."
The tingling lingered, and I started looking up information for myself on alternative, holistic sites. Someone had listed similar symptoms and said it was just a vitamin deficiency. That couldn't be it, right? Well I ordered some supplements, and within a month, the tingling was gone.
$3k down the hole. Fuck capitalism.
I grew up poor. Ate a lot of ketchup sandwiches, and sometimes the lights got shut off for a while. Both my parents worked, it just plain wasn't enough. It was apparent to me from a young age that things as they are aren't right, and that things don't have to be this way. In 2016, after Sanders got ratfucked, some Green Party people got me to read Marx, and it was like a switch being flipped. A lot of what I was reading was stuff I already knew, but articulated better, and with proper frameworks.
Now I'm a communist.
Still can't stand the taste of ketchup, though.
🥺