You call it greed but in a lot of these places it's necessity. Now that necessity might partially be the result of other people's greed but that's a whole other conversation about poverty.
Ocean currents, elevation and distance from the equator also have a big impact on what the season is going to feel like.
There's no need to change the dates. They're already arbitrary based on the position of the sun and the earth and people have the experience to take them with the grain of salt necessary to the region they live in. People who live near the equator probably don't have much care for the notion of the winter at all. Folks who live far up north know that spring actually comes in much later than march 21st. People who climb glaciated mountains in the canadian rockies know they won't get summer conditions until late june.
Do you realize that humans are currently triggering a mass extinction event that may very well threaten the very existence of our species within a couple generations?
Contemporary bandsaws used by people who take workplace safety seriously have emergency brakes for just that reason (countless trained operators also lost fingers). Improving tools is something we've been doing since our ancestors first held a branch. If we satisfied ourselves with good enough we'd live much different lives.
Apart from safety, the rhetoric of the US government regarding the invasion of former allies has led a lot of people to try really hard to boycott as many American products as they can.
Eating only corn and wheat will leave you with nutrient deficiencies. You can be obese and still malnourished if all the veggies you eat are a slice of tomato and lettuce in your burger and half a potato with the same volume of frying oil.
Pulling out is pretty effective when you do it right, they can't really ban that. In very catholic Quebec up to the 1950s priests would get involved in couple's marital lives and apply pressure when wives weren't getting pregnant for just that reason.