Study following reports.Turkey is not weak country. It has big military & support of NATO too. Even today U.S.A will think twice to shot down russian jet, but turkey didn't even give warning & shot down jet as it crossed only 1.36 miles border. Turkey has very aggressive policy. He will not even spare mighty china & U.S.A for bashing. Turkey don't care if he is russia, china or U.S.A .
American troops have taken over oil rich Deir Ezzor sector of Syria by force. Neither Syrian regime and nor Russian forces have the balls to bomb this sector.
More information: https://thedefensepost.com/2019/10/28/syria-deir-ezzor-oilfields-esper-russia/
In contrast, Syrian regime and Russian forces continue to attack Turkey-backed Idlib sector of Syria.
US have shielded Turkey from the prospects of Soviet aggression through the years after World War II, not the other way around.