Old news, there's been battles between Kurds and JAN since then, it's very much a situation in flux.
As for life under Assad...
Do you really think living under a regime which stole from you and denied you the right to make any criticism of them was nice? Where "behind the sun" was the euphemism for where you would be if the Mukhabarat got their hands on you? Where the joke was, that "even when you go to the dentist, you don't open your mouth".
Even in the UK, those with Syrian relatives would be scared to speak out, because they know they were being monitored.
Yes, of course things are terrible now, but don't forget, the Syrian people didn't for ask for war, they asked for reform and Assad responded by killing them.
The people would always have risen up one day, such regimes never last for ever. But such regimes are not meant to be allowed to behave with such unfettered brutality in the 21st century. Never Again and all that.