Thats not how to look at it. Its dropping all computers from working that were purchased before 2018. So someone who bought a computer 5 years ago is being told to upgrade again in 2.
Buying new computers contribute to the climate crisis, Microsoft forcing you to buy them is a giant "fuck you" to our slim chance of survival on this planet...
Meh, it's not like the computers won't be produced anyway, whether we buy them or not...
