If a saw sucks ass like the one I used a few days ago, you can’t safely cut through wood and you end up doing dangerous things like putting your body weight on the top of the miter saw to get it down all the way, gripping the piece closer to the blade to try to get it to cut better with less tear out or to not slip, etc…
There is a big difference between cheaping out on blades/never replacing them and cheaping out on the saw itself. I agree I wouldn’t get the absolute cheapest miter saw, but a relatively cheap one with good blades that are replaced often shouldn’t be significantly more dangerous than a more expensive one.
Oxygenated blood is bright red, whereas deoxygenated blood is a darker red. And it looks blue because blue light doesn’t penetrate the skin as deeply as red light. The ones closer to the surface appear blue while deeper ones are purpleish due to the red light reflecting deeper.