I think that's a legitimate concern.
The Assad regime is from the Alawite minority, which actually represents only 12% of the population. Christians represent 10% and the Jewish group makes up 3%.
The Alawites, the Christians, and the Sunni elites support the Assad regime. The majority Sunni are in opposition to the regime; this is why there is tremendous concern about the evolution of a sectarian war within Syria, and about the considerable vulnerability that the Alawite minority or even the Christian minority might feel if a Sunni majority is able to take over power in the country. There is unease about what this would mean for the future in terms of minority rights within Syria.