In seriousness, it’s often about water pressure and how your hot water is fed. If you have very high water pressure normally but a solar hot water system where gravity and input pressure play a role, you’ll naturally have an imbalance on hot and cold. When you turn the handle on the shower you’re lining up two holes in the shower cartridge (in the handle) with the two hot and cold water pipes, the resulting mix comes out a third hole which feeds the shower head. As you turn the handle, one hole opening gets smaller and the other bigger- thereby changing the ratio of hot : cold. When you already have a huge pressure of cold water pumping in, the degree of rotation needed to go from warm/almost just right to PURE HOT WATER is minuscule. Usually the cold will stay pretty cold for about half of the handle range of motion too.

If water input pressure being high is a problem you can put a reducing valve on your system overall or you can buy Venturi style pumps which add pressure into your hot water system.

You’ll normally find when it’s pressure imbalance that it’s easier to balance the temp when the tap isn’t open full bore. But who wants a weak-ass shower stream!!

Because it is hard to make a cheap valve that has a wide mixing 'sweet spot'.

Rich people showers don't have this problem

Turn down the temperature of your water heater.

What kind of fucked shower knob turns counterclockwise

The cartridge is likely bad. They get clogged up with lime scale over time and start to perform worse and worse. Either replace the cartridge or the whole faucet itself.

Okay I'm gonna be real. I didn't understand the meme at first and thought you were showing a melted door handle and the guy in the meme was trying to melt another door handle with his mind

I was fully prepared to read a bunch of comments about how are door handles so sensitive to heat due to their metallic composition and how you absolutely cannot melt things with your mind that the actual comments tripped me

Observe while I shower comfortably with:

You should just move to a more tropical area. Where I live, I only ever use the "Cold" tap and sometimes, even that is too warm.

They're so sensitive because the person who installed them didn't care enough to adjust the regulator. If this bothers you, you can take the handle off yourself with an allen wrench and adjust the valve so that when you turn it on, it's the perfect temperature for you every time.

i saw a comment on a meme like this that said some water mixing thing was broken

So there are lots of good answers, but there's one I haven't seen: The type of shower control in the photo is probably low quality, cheap, meaning the internal parts do a poor job of mixing the hot/cold water.

Adjusting the water heater may help, but you might also consider upgrading the shower faucet.

I could've sworn there was a Seinfeld bit about the shower temperatures being sensitive when you adjust the tap but I can't find it now