Compared to Turkey, Syria is strategically worthless. Too many people here seem to underestimate Putin. If I was Russian, I would find all the love here insulting (or hilarious). Putin is looking out for Russia and Russia taking Turkey away from NATO would provide some balance after Poland and Ukraine joined the West. It is the best possible result for Russia and the worst result for the USA.
Turkey and Russian have fought wars 13 times. One is Islamic and the other has gone back to its Christian roots. Until that basic fact changes any alliance made is going to be temporary at best.
Putin needs Syria’s ports and airfields for their powr projection in the Middle East as well as to ensure that they can operate in that theater unopposed (by Israel - not going to happen; Jordan - will stand by; Iraq - Nada; Iran - supports Putin; Saudi Arabia - tied down in Yemen, etc.
Putin on the Blitzes, he is.