It's ugly, and emotionally loaded language which doesn't bring us towards any bright idea. In majority of languages where Latin is the base for their writing systems, there are diacritics, or other graphical changes. I wonder if you want also to tell French, and German guys that they 'bastardized' Latin, or is it only Kazakh who are not allowed to use the script with additions? Besides, Cyrillic had to be heavily modified for Kazakh also, and I guess any script, which realistically exists in modern world.