A lot of assumptions here. The biggest being that dinosaurs evolved into modern day birds.
homogeneous extrapolations- some features ‘look similar’ therefore they are related- but homologous features do not a relative make
Yep, but if they say it enough it will make it so, right?
Seriously, do you understand the distinction between an "assumption" and a conclusion based on evidence?
The idea that birds came from dinosaurs is quite old -- it goes back to the discovery of Archaeopteryx fossils beginning in 1861, in Germany.
Yes, over the years there has been debate as to whether birds came from dinosaurs, or if they simply shared common ancestors.
But today we have fossils of dozens of species of early dinosaur-like birds and bird-like dinosaurs.
These include many obviously transitional forms.
So the conclusion -- not "assumption" -- that birds came from dinosaurs seems reasonable and warranted.
Archaeopteryx fossil & reconstruction: