A lot of younger voters showed up and most of the young people are pro-democracy.
The rioters have always been better at propaganda. Frankly speaking, these rioters are well organized and often seized the moral high ground. They have succeeded in tearing up the false face of a very large number of Hong Kong people and putting "anti-China" (which is simply "anti-Chinese") on the table. In the middle of their yellow wave, there are no spaces for "independent thinking". Basically, others are "enemy" and they are the "real Hong Kong people" and feel that they are "eggs" that resist "tyranny" and " High wall", indulge in romance and tragic.
In addition, like many mass movements, the yellow media, foreign media, and pro-rioter propaganda have greatly rendered the police as "brutal" and successfully won the sympathy of many elderly citizens. Many middle-class (and they are the more wealthy people in Hong Kong) who are always polite and law-abiding (they are the ones who benefit most from Hong Kong's good law and order) have become anti-police and anti-China . So we have to applause how successful their brainwashed ability.
On the other hand, the pro-Beijing camp, it can be said that they have done nothing. Since the beginning they have basically been unorganized. Most ordinary people are afraid of being harassed and got intimidated to be remained silence. The HK government officers especially the higher ups have no sense of responsibility and have done nothing. Most of the so-called pro-government propaganda has been negative assets. If it were not for the police force and the central government behind it, the government had already fallen for a few months.