Some interesting facts: The Uzbeks were conquered by Genghiz Khan and his forces totally wiped out the Uzbek/Kazakh/Turkmen Muslim culture that existed in the then-Islamic sultanate of Khwarzaim. It was this event that caused the Turkmen (now called the Turks) to move from Central Asia into what's now called Turkey.
Tamerlane was a direct descendant of Genghiz Khan but belonged to the subsequent Ilkhan dynasty that converted to Islam and later waged civil war against the Mongol homeland AKA the Golden Horde. In fact, the collapse of the Mongol empire in West Asia came about because of the conversion of the Ilkhan branch of the Mongol horde that subsequently allied with the Arabs to defeat their mostly shamanist/Buddhist blood brothers.
The Islamic mongols who settled in Persia and became devout muslims appeared in India as the hated Moghul/Mogul dynasty that opened a new chapter of Islamic barbarism in South Asia.
Ok, now the scales : how much creative GOOD has islam done vs how much EVIL has islam done.
"The Uzbeks were conquered by Genghis Khan...and their culture wiped out"
I was told that Uzbekistan as we now know it did not coalesce into a national identity until the 1400's, the ruler was named `Uhlan Beg" or something.