Macroevolution Observed?

Why does it matter if Man is involved or not? Lets Take Domestic Dogs for instance.. We have SO many Breeds... If they each lived in the wild we would Most likely Classify them as separate species.
I Am NOT saying there isn't a difference between Natural and Artificial selection Because there is..Lets Define the 2Artificial Selection: is when Humans Select the Animals and or genes to have a specific result Occur.EX: At One time all Domestic dogs were one breed... we have even seen this occur recentlyNatural Selection: Animals best equipped to Survive are the ones that successfully breed and pass on genes.
Example: This is Very Simple example. Lets say there is a Population of Brown lizards Living in an area with very dark Blackish Soil. Some of the Lizards are born with darker Skin then Others. The Ones with the Darker skin are the ones most likely to evade Predictors therefore successfully breed... Over time the Lizard population is Blackish brown.What is the difference really? Its not like we are directly manipulating genes. I can't understand why people can't see how this can happen in the wild.

how do you define macroevolution? On what scale? I mean a city I wasn't built in a day was it? Evolution needs time... you don't expect us to observe a reptile evolve into a mammal do you? Explain what you consider macroevolution please then we can continue.