Dear Sir. Lamarck developed his theory long before Michurin and before Darwin. And Darwin repeated several Lamarck ideas.
You cannot claim that Darwin was more right than Lamarck in matters of inheritance because the genetics was developed AFTER Darwin.
Science is moving and we get more and more evidence against crude scheme of random mutations followed by inefficient selection. The movement of genetic information is not unidirectional (retroviruses demonstrate it), is not restricted to one species (genes can be shared/distributed), and DNA is not a master but rather a servant (selectively used like a library by a living organism). We know only a fragment of this amazing design.
Crude Free Market scheme of random mutations is not any better than "proletarian Michurinite theory". It is equally unscientific and equally ideological.
why stop at Michurin when Lysenko is just around the corner?