Lol Apple's m1 max destroys most of the electricity pig desktops un the market for less power... the m2 will destroy a 3090 or 4090 using 50watts lol
I think you have a real problem grasping a what desktop represents. Higher power consumption is necessary to achieve certain level of performance. You may argue if the power used by components is higher than expected or not but it all comes down to components. You claim desktops have too high power consumption but yet this is the only scenario where you can actually do this without getting your system constrained. You cant compare a laptop to a desktop because these are two different segments. Saying that desktops use too much power because laptops dont is foolish. Desktops can use more power and have better performance because you can cool those easier than in a confined space laptop gives you. That is why laptop are lower power consuming machines thus less powerful. Desktops dont have terrible power consumption than laptops. They have higher power capabilities which prevents laptops having this due to heat and cooling constraints. Laptops are compact and build with power saving in mind giving certain level of performance.
Now, a processor may have a ridiculous or terrible power consumption to achieve a certain level of performance in today's standard but that is basically it. You can balance it though to get as much as possible from a CPU within a reasonable power consumption range.
People prefer laptops over desktops. That is the most vague and ridiculous thing one can say really.