In general people don't agree with it. However, for a lot of people, it's not actually on their radar.
The reality is most people in China are so engrossed in their work and day-to-day life that censorship isn't really actually an issue for them, and taking political action is not something that an average citizen would do considering the grave risks to your career.
Also, it's worth noting that most citizens prioritize safety over free speech. If changes in the law indirectly mean that there will be riots on the streets, most citizens would rather have whatever it takes to have no riots. That isn't to say people agree with censorship, but for what it's worth, people are happy that you can more or less walk around anywhere in China without much fear of your personal safety. Most people in Shenzhen were extremely happy they were in Shenzhen where you could walk around freely instead of "free" Hong Kong where you had to be in fear of idiot high school students throwing Molotov cocktails and beating up anyone who spoke Mandarin.