Because people have claimed for decades that breakfast is the most important meal and that you have to eat breakfast and made all sorts of unfounded claims with no evidence.

I have no trouble believing that breakfast is relevant to circadian rhythms. This is far different from saying that skipping breakfast inevitably results in "sleeping later and waking up later as the rhythm shifts towards your first meal of the day." This is a very strong claim that demands strong evidence. Some studies linking circadian rhythm to meals is not sufficient.

This is a public discussion forum. You can criticize my response. You cannot criticize me for responding. I certainly didn't ask for you to respond to me, and yet you did, which is perfectly appropriate.