Why are there even "sides"? it's very obvious that this new tooling can be very useful for the modern Web. it's also apparent that a certain intersection of ski

Why are there even "sides"? it's very obvious that this new tooling can be very useful for the modern Web. it's also apparent that a certain intersection of skill set and project requirements can do better with more classic tooling. why is there a continuous need to pull someone to one side or another? whatever happened to using the most appropriate tool for the job?